t-value (-4.38) is greater than the absolute value of
the critical t-value (1.990), we can reject the null hypothesis and conclude
that there is convincing evidence that the mean reading level for health-
related pages differs for Wikipedia and WebMD.
To test if there is convincing evidence that the mean reading level for
health-related pages differs for Wikipedia and WebMD, we can use a
two-sample t-test.
Let's set up the null and alternative hypotheses:
Null hypothesis: The mean reading level for health-related pages is the
same for Wikipedia and WebMD (μ1 = μ2)
Alternative hypothesis: The mean reading level for health-related pages
differs for Wikipedia and WebMD (μ1 ≠ μ2)
We will use a significance level of 0.05, which means that we are willing
to accept a 5% chance of making a Type I error (rejecting the null
hypothesis when it is actually true).
We can use the following formula to calculate the test statistic:
t = (x_1 - x_2) / (s_pool × √(2/n))
Where:
x_1 and x_2 are the sample means
s_pool is the pooled standard deviation, calculated as:
[tex]\sqrt{ (((n1-1)\timess1^2 + (n2-1)\timess2^2) / (n1+n2-2))}[/tex]
n is the sample size for each group
Plugging in the values, we get:
x1 = 26.2
x2 = 43.6
s1 = 14.2
s2 = 19.9
n1 = n2 = 40
s_pool = [tex]\sqrt{(((40-1)\times14.2^2 + (40-1)\times19.9^2) / (40+40-2))} = 17.0[/tex]
t = (26.2 - 43.6) / (17.0 × √(2/40)) = -4.38 (rounded to two decimal places)
Looking up the critical t-value with degrees of freedom = 78 (df = n1 + n2 - 2), and a significance level of 0.05, we get:
t_critical = ±1.990
Since our calculated t-value (-4.38) is greater than the absolute value of
the critical t-value (1.990), we can reject the null hypothesis and conclude
that there is convincing evidence that the mean reading level for health-
related pages differs for Wikipedia and WebMD.
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Help in this too because in this I am so confused
The value of x in given figure is a whole number that is x = 6.6
What do you mean by Secant Theorem ?When two tangent segment are drawn from an outside point to a circle, the sum of the dimensions of the first tangent segment and its exterior tangent segment equals the sum of the dimensions of the other secant segments and its exterior secant segment.
Given the image and the labelled measurement of two secant segments outside the predetermined circle that have a similar endpoint. We are required to determine what x's value is.
With these measurements, we can use the secant-secant theorem to solve for the value of x as we refer to and analyse the figure. We will therefore have this theorem applied.
(5) [(5) + ( x+4)] = (6) [6 + 7]
(5) [5+x+4] = (6) [13}
5 [9 + x] = 78
45 + 5x = 78
5x = 33
x = 6.6
Therefore the value of x is 6.6
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If a cereal box (rectangular prism) has the dimensions of 6
inches by 4 inches by 14 inches, what is the volume?
Answer:
336in^2
Step-by-step explanation:
6 x 4 x 14
"The buetiful thing about learning is that no one can take it away from you" :)
Answer: 336
Step-by-step explanation: I just multiplied them all
suppose that the return for a particular large-cap domestic stock fund is normally distributed with a mean of 14.4% and standard deviation of 4.4%. (a) what is the probability that the large-cap stock fund has a return of at least 17%? (round your answer to four decimal places.)
The probability that the large-cap domestic stock fund has a return of at least 17% is approximately 0.2776 or 27.76%.
To calculate the probability that the large-cap domestic stock fund has a return of at least 17%, we need to find the z-score first.
The z-score formula is:
Z = (X - μ) / σ
Where X is the desired return (17%), μ is the mean of 14.4%, and σ is the standard deviation of 4.4%.
Z = (17 - 14.4) / 4.4 = 2.6 / 4.4 ≈ 0.591
Now, using a z-table or calculator, we can find the probability associated with this z-score. The area to the left of the z-score in a standard normal distribution is approximately 0.7224. Since we want the probability of a return of at least 17%, we need to find the area to the right of the z-score.
P(X ≥ 17%) = 1 - P(X < 17%) = 1 - 0.7224 = 0.2776
So, the probability that the large-cap domestic stock fund has a return of at least 17% is approximately 0.2776 or 27.76%.
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PLS HELPPP
For how many integers between 1 and 2023 inclusive is the improper fraction [tex]\frac{n^{2} +4}{n+5}[/tex] not in simplest form.
The improper fraction [(n² + 4)] / [(n + 5)] is not in simplest form for 2024 integers between 1 and 2023 inclusive.
For how many integers between 1 and 2023 inclusive is the improper fractionWe notice that the numerator of the fraction is always of the form n² + 4, which is always greater than or equal to 4 for any n. Also, the denominator is always positive, since n + 5 is always positive for n ≥ -5.
For the fraction to not be in simplest form, the greatest common divisor of the numerator and denominator must be greater than 1. Let's try to find the factors of the numerator:
n² + 4 = (n + 2i)(n - 2i)
where i is the imaginary unit. Therefore, the fraction [(n² + 4)] / [(n + 5)] is not in simplest form if and only if n + 5 is divisible by one of the factors (n + 2i) or (n - 2i), for some integer i ≠ 0.
Since n + 2i and n - 2i differ by 4i, they are either both odd or both even. Therefore, for n + 5 to be divisible by either of them, n must have the same parity (evenness or oddness) as i. If n is even, then n + 2i and n - 2i are also even, and their greatest common divisor is even. If n is odd, then n + 2i and n - 2i are also odd, and their greatest common divisor is odd.
Therefore, for each even n between 1 and 2023 inclusive, there are no factors (n + 2i) or (n - 2i) that divide n + 5, since they would have to be even and n + 5 is odd. For each odd n between 1 and 2023 inclusive, there are two factors (n + 2i) and (n - 2i) that divide n + 5, namely i and -i. Therefore, the improper fraction [(n² + 4)] / [(n + 5)] is not in simplest form for exactly 2 times the number of odd integers between 1 and 2023 inclusive.
There are (2023 - 1) / 2 + 1 = 1012 odd integers between 1 and 2023 inclusive, so the answer is 2 * 1012 = 2024. Therefore, the improper fraction [(n² + 4)] / [(n + 5)] is not in simplest form for 2024 integers between 1 and 2023 inclusive.
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the area of a rectangle is what
Answer:
The area of rectangle is Length × Breadth
Step-by-step explanation:
You have already learnt that perimeters of plane figures and areas of squares and rectangles. Perimeter is the distance around a closed figure while area is the part of plane or reason occupied by the closed figure.
[tex] \sf \: Squares \: and \: Rectangles[/tex]
Ananya and samira made pictures. Ananya made her picture on a rectangular sheet of length 60 cm and breadth 20 cm while samira made hers on a rectangular seat of length 40 cm and breadth 35 cm. Both these pictures have to be separately framed and laminated.
Who has to pay more for farming is the cost of farming is $3.00 per cm?
If the cost of lamination is $2.00 per cm², who has to pay more for lamination?
For finding the cost of farming, we need to find perimeter and then multiply it by the rate for farming. For finding the cost of lamination we need to find area and then multiply it by the rate of lamination.
Example:-Find the area of the rectangle whose Length is 4 cm and breadth/width is 6 cm .
Answer:
The area of the rectangle is 24 cm²
Step-by-step explanation:
Length of rectangle = 4 cm
Breadth of rectangle = 6 cm
[tex] \bf \: Formula \: used[/tex]
[tex] \sf \: Area_ { \{Rectangle \}} = Length × Breadth[/tex]
Now put values
[tex] \sf \: Length = 4 cm [/tex]
[tex] \sf \: Breadth = 6 cm[/tex]
[tex] \sf \: Length × Breadth = 4 × 6 \: cm [/tex]
[tex] \sf \implies 24 \: cm \ {}^{2} [/tex]
Always remember if we find area :-
After units like centimetres,metres we always put (²) on these units.
Like :- 26 cm², 56 m ²
In words = Twenty six centimetre square, Fifty six centimetre square
Required Answer :The area of rectangle is 24 cm²
Additional informatioNPerimeter
Parallelogram = 2(Base + Height)Triangle = a + b + cRectangle = 2(Length + Width)Square = 4×sideTrapezoid = Base + Base + side + sideRhombus = 4 × sideHexagon = 6 × sideArea
Square area formula: = side×sideRectangle area formula: = L × BCircle area formula: = πr²Circle sector area formula: = r² × angle / 2.Ellipse area formula: = Axis× Axis × πTrapezoid area formula: = (base + base) × h / 2.Area of a Triangle = A = ½ (b × h)♦ Area of Rectangle
Length × Breadth[tex] \underline{ \rule{140pt}{4pt}}[/tex]
Additional Information :-Area - Region occupied by figure is called area.
[tex] \large \bf{ \mathfrak{{More \: Formulas \: \red{( Area)}}}}[/tex]
[tex] \large \sf \leadsto \: triangle = \frac{1}{2} \times bh[/tex]
[tex]\large \sf \leadsto \: \: Rectangle \: = \: lb[/tex]
[tex]\large \sf \leadsto \: \: Square \: = {s}^{2} [/tex]
[tex]\large \sf \leadsto \: \: Parallelogram \: = \: bh[/tex]
[tex]\large \sf \leadsto \: \: Rhombus \: = \: \frac{1}{2} \times \: d1 \times d2[/tex]
[tex]\large \sf \leadsto \: \: Trapezium \: = \frac{1}{2} \times (x + y) \times h[/tex]
[tex]\large \sf \leadsto \: \: Quadrilateral \: = \: \frac{1}{2} \times d(h1 + h2)[/tex]
[tex]\large \sf \leadsto \: Circle \: = {\pi \: r}^{2} [/tex]
[tex]\large \sf \leadsto \: \: Equilateral \triangle \: = \frac{ \sqrt{3} }{4} \times {s}^{2} [/tex]
the number of skittles in a giant-size bag is between 1150 and 1300 candies, and is uniformly distributed. what is the probability that a bag contains between 1200 and 1225 candies? enter your answer as a percentage accurate to two decimal places. for example, a probability of 0.4567 is 45.67% so it should be entered as 45.67.
The required probability of the candies in the bag having width between 1200 and 1225 is given by 16.67%.
The range of the number of skittles in the bag is 1150 to 1300 candies and is uniformly distributed.
This implies that the probability density function is a horizontal line over this interval.
The width of the interval we are interested in is 1225 - 1200 = 25 candies.
The total width of the interval is 1300 - 1150 = 150 candies.
The probability that the bag contains between 1200 and 1225 candies is equals to,
= ( Width of the required interval ) / (Total width of the interval )
= 25 / 150
= 0.1667
This means that the probability is 16.67% accurate to two decimal places.
Therefore, the probability of the bag contains candies between 1200 and 1225 is equal to 16.67%.
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Factorize quadratic expressions x-x+6
Thus, the two factors of quadratic expressions found after factorization are 2 and 3.
Explain about the factorization:Factorization is the technique of expressing a given statement as the product between two or more components. The sum of the greatest common factors of the integer coefficients and the same letters with the smallest powers yields the greatest common factor for two or more monomials.
Factorization in mathematics is the process of dividing a large number into smaller ones that, when multiplied together, gives you the original number. Factorization is the division of a number in with its factors or divisors. The factorization of the integer 12, for instance, might appear as 3 times 4.Given quadratic expressions:
= x² - 5x + 6
To factorize the expression, find the factors of 6 such that on addition it becomes -5.
= x² - 3x - 2x + 6
Taking x common from first two terms and -2 from last two terms.
= x(x -3) -2(x - 3)
Taking (x - 3) common.
= (x - 3)(x - 2)
x -3 = 0
x = 3
and, x - 2 = 0
x = 2
Thus, the two factors of quadratic expressions found after factorization are 2 and 3.
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Complete question:
Factorize quadratic expressions: x² - 5x + 6
Step-by-step explanation:
Perhaps you entered your question incorrectly
maybe you meant
x^2 -x + 6 THIS factors to
(x-3)(x+2) <=====if you multiply this out, you will see = x^2 -x+6
Are you familiar with the Quadratic Formula ?
for this Quadrtatic a = 1 b = -1 c = 6
if you plug these numbers into the Quadratic Formula you get the roots:
x = 3 and x = -2
then you know the quadratic is (x-3)(x+2)
i need equivalent expressions
To fill up the blanks such that each rectangle has the same area, we could assign the following numbers:
1. First two upper boxes in the first rectangle 2 and 4. The side box, 3.
2. For the two upper boxes in the second rectangle, we could assign the numbers, 10 and 8.
How to find the area of a rectangleTo find the area of a rectangle, you should multiply the length of the rectangle by its width. So, for the first rectangle, the sum of the length will be 6 and this will be multiplied by the width, which is 3.
Also, for the second rectangle, we could sum up the length to be 10 + 8 which is 18. If multiplied by 1, the result of the area will be 18.
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For each inequality, find two values for x that make the inequality true and two values that make it false
A. x+3>70
B. x+3<70
C. -5x<2
D. 5x<2
to find two values for x that make an inequality true, we can choose values that satisfy the inequality, while to find two values that make it false, we can choose values that do not satisfy the inequality.
How to solve inequality?
A. x+3>70
To make this inequality true, we can choose x = 67 or x = 100. For x = 67, we have 67 + 3 > 70, and for x = 100, we have 100 + 3 > 70. To make the inequality false, we can choose x = 68 or x = 69. For x = 68, we have 68 + 3 < 70, and for x = 69, we have 69 + 3 < 70.
B. x+3<70
To make this inequality true, we can choose x = 0 or x = 1. For x = 0, we have 0 + 3 < 70, and for x = 1, we have 1 + 3 < 70. To make the inequality false, we can choose x = 67 or x = 100. For x = 67, we have 67 + 3 > 70, and for x = 100, we have 100 + 3 > 70.
C. -5x<2
To make this inequality true, we can choose x = 0 or x = -1/5. For x = 0, we have -5(0) < 2, and for x = -1/5, we have -5(-1/5) < 2. To make the inequality false, we can choose x = -2 or x = 1/5. For x = -2, we have -5(-2) > 2, and for x = 1/5, we have -5(1/5) > 2.
D. 5x<2
To make this inequality true, we can choose x = 0 or x = 1/5. For x = 0, we have 5(0) < 2, and for x = 1/5, we have 5(1/5) < 2. To make the inequality false, we can choose x = -2 or x = -1/5. For x = -2, we have 5(-2) > 2, and for x = -1/5, we have 5(-1/5) > 2.
In summary, to find two values for x that make an inequality true, we can choose values that satisfy the inequality, while to find two values that make it false, we can choose values that do not satisfy the inequality.
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write an expression to show the total number of hours erica works in a week that she babysits for 8 hours.
The total number of hours Erica works in a week when she babysits for 8 hours can be expressed using the following equation: Total Hours Worked = 8 x Number of Babysitting Days per Week In this case, since Erica babysits for 8 hours.
To calculate the total number of hours Erica works in a week, we need to consider the number of days she babysits and the number of hours she works per day. Erica babysits for 8 hours per day. Therefore, we can use the equation
Total Hours Worked = Number of Days x Hours per Day
To calculate the total number of hours she works in a week. We can substitute these values into the equation:
Total Hours Worked = 1 x 8 = 8 hours.
This means that Erica works a total of 8 hours per week when she babysits for 8 hours.
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Kody and Josh rode bikes. Kody rode 35 miles in 80 minutes. Josh rode 102 minutes at a faster rate per mile than Kody. Find Kody's unit rate in minutes per mile. Then,
explain how you could use it to find a possible unit rate for Josh.
The unit rate for Kody is minutes per mile.
The possible unit rate for Josh is 2.91 minutes per mile. However, keep in mind that this is just one possible rate and there could be other values that satisfy the conditions given in the problem.
What is unit rate?Unit rate is a rate that is simplified to have a denominator of 1.
In other words, it is a ratio that compares two measurements with one of the measurements set to 1.
For example, if a car travels 100 miles in 2 hours, the unit rate for the car's speed would be 50 miles per hour.
Kody's unit rate can be found by dividing the time taken by the distance covered:
Unit rate = Time / Distance = 80 minutes / 35 miles = 2.29 minutes per mile (rounded to two decimal places).
To find a possible unit rate for Josh, we can use the fact that he rode at a faster rate per mile than Kody. Let's say that Josh's unit rate is x minutes per mile. Since he rode for 102 minutes, we can set up the following equation:
35 miles x (minutes per mile) = 102 minutes
Solving for x, we get:
x = 102 minutes / 35 miles = 2.91 minutes per mile
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jack is 30 years older than his son jim. FIve years ago jack was 3 times as old as his son. How old are they today?
Answer:
They are 50 and 20 years old.
Step-by-step explanation:
5 years ago jack was 45 and his son was 15, which makes jack 3 times older than his son and has a 30 year difference.
This graph represents a proportional relationship.
The graph represents a proportional relationship is a false statement.
Based on the graph, it appears to represent a linear relationship, where there is a constant rate of change between the two variables. However, it is not possible to determine if it represents a proportional relationship without knowing the specific context of the data being plotted.
If the variables represented in the graph have a proportional relationship, then the graph should be a straight line that passes through the origin (0,0). This is because in a proportional relationship, as one variable increases, the other variable increases or decreases in proportion to the change in the first variable. Therefore, the ratio between the two variables should remain constant.
If the graph in this example does not pass through the origin, then it is likely that the relationship between the variables is not proportional.
As sufficient data is not provided so this statement is false.
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the appropriate test to compare one sample to another sample to see if one is greater than another in some way is called a(n) ?
The appropriate test to compare one sample to another sample to see if one is greater than another in some way is called a "two-sample hypothesis test."
In a two-sample hypothesis test, the null hypothesis states that there is no significant difference between the means of the two samples, while the alternative hypothesis states that there is a significant difference between the means.
The specific type of test used depends on several factors, including the type of data being compared, the sample sizes, and the level of significance desired. Commonly used tests include the t-test, z-test, and ANOVA.
It is important to choose the appropriate test for the data being analyzed to ensure accurate results and conclusions.
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Which of the following appear in the diagram below? Check all that apply.
Answer:
C. ∠ZXY and D. YX
Step-by-step explanation:
C. ∠ZXY
because the middle letter is always the angle or the turning point of an angle and also it is in order based on the diagram. The angle won't change even if you look at it on a different point of view or if the diagram was flipped.
D. YX
because the line YX is a true statement because XY or YX is on the same line that goes on and on. You can tell because there's arrows on the end of the line.
Describe the translation from the pre-image to the image please
Step-by-step explanation:
Look at point A ====> A'
x goes from 1 to 4 so X: x + 3
y goes from 7 to 3 so Y: y - 4
What is the product of (3a 2)(4a2 – 2a + 9)?a. 12a3 − 2a + 18b. 12a3 + 6a + 9c. 12a3 − 6a2 + 23a + 18d. 12a3 + 2a2 + 23a + 18
Answer:
12a^3 +2a^2+23a+18
Step-by-step explanation:
help!?!??!?!!?!!?!!?!?!??
Answer:
C.)
Step-by-step explanation:
1.) First find the slope of the perpendicular line. The slope of the perpendicular line is the number that when multiplied by the slope of the initial line, you get -1. The slope of the line is 3/8, and -8/3 * 3/8 is -1, therefore -8/3 is the slope of the new line.
2.) Now, since we have a slope if you look at the options, there is only one option with the slope -8/3, which is option C.).
Slice it for me pls
Thank you
The quadratic function graphed is defined as follows:
C) y = x² - x - 2.
How to define the quadratic function?The factored format of a quadratic function is given as follows:
y = a(x - x*)(x - x**)
In which the parameters are given as follows:
x* and x** are the x-intercepts of the graph of the quadratic function.a is the leading coefficient.From the graph, we have that it crosses the x-axis at x = -1 and x = 2, hence the x-intercepts are given as follows:
x* = -1, x** = 2.
Hence:
y = a(x + 1)(x - 2)
y = a(x² - x - 2).
When x = 0, y = -2, hence the leading coefficient a is given as follows:
-2a = -2
a = 1.
Thus the equation is:
y = x² - x - 2.
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The graph of the linear function passes through the points (4, 24) and (6,30).
What is the equation of the function?
Answer:
To find the equation of the linear function, we need to first determine its slope, which is the rate of change of the function with respect to its input. We can use the slope formula: slope = (change in y) / (change in x) Using the two given points, we have: slope = (30 - 24) / (6 - 4) = 3 Now that we know the slope, we can use the point-slope form of the equation of a line to find the equation of the function: y - y1 = m(x - x1) where m is the slope, and (x1, y1) is one of the given points. Let's use the point (4, 24): y - 24 = 3(x - 4) Expanding and simplifying, we get: y = 3x -
Bill buys 4.8 pounds of oranges for $10.
About how much do they cost per pound?
$8
$4
$2
A cube-shaped box has a volume of 64 cubic inches. If the box is packed full of cubes with edge lengths of 1 inch, how many cubes can fit along one side of the box?
A) 2 cubes
B) 4 cubes
C) 8 cubes
D)16 cubes
Answer:
B) 4 cubes
Step-by-step explanation:
V = s³
[tex] s = \sqrt[3]{V} [/tex]
[tex] s = \sqrt[3]{64} [/tex]
[tex] s = 4 [/tex]
What is the total area of the figure shown? Arrow-shaped composite shape formed by a rectangle and a triangle. The rectangle has a length of 12 meters and a width of 9 meters. The height of the triangle is 14 meters. The rectangle has two vertices 5 meters apart from the vertices of triangle.Type the correct answer in the box. Use numerals instead of words.
So the total area of the figure is 171 square meters.
What is area?Area is a measure of the size of a two-dimensional surface or region. It is usually expressed in square units, such as square meters (m²), square centimeters (cm²), or square feet (ft²). The concept of area is used in mathematics, geometry, and various fields such as architecture, engineering, and physics.
Here,
To find the total area of the figure, we need to find the areas of the rectangle and the triangle, and then add them together. The area of the rectangle is:
A = length x width
= 12 m x 9 m
= 108 m²
The area of the triangle is:
A = (1/2) x base x height
= (1/2) x 9 m x 14 m
= 63 m²
The base of the triangle is the same as the width of the rectangle, since they are adjacent and parallel. The other side of the triangle is the hypotenuse, which can be found using the Pythagorean theorem:
a² + b² = c²
where a and b are the legs of the right triangle, and c is the hypotenuse. In this case, we can use a = 9 m (the width of the rectangle) and b = 5 m (the distance between the rectangle and the triangle):
9² + 5² = c²
81 + 25 = c²
106 = c²
c ≈ 10.3 m
Therefore, the total area of the figure is:
total area = area of rectangle + area of triangle
total area = 108 m² + 63 m²
total area = 171 m²
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The expression -8(2t2-3t) represents the height, in feet, of a soccer ball after it is kicked. Which value represents the initial
velocity of the soccer ball?
Answer: 5
Step-by-step explanation:
What is the formula for radius and circumference?
and how do you solve it?
A certain Midwestern University claims that 90% of their football players complete the degree in five years. The NCAA investigates his claim by selecting a random sample of 20 football players, that have been part of the program within the past 5 years. 14 of these players received their degree, while 6 did not receive their degree. If you were the investigator, what would you conclude about the universities claim? Explain your reasoning with probability.
We can conclude that 10% of the football players complete their degree in five years.
How to investigate the university's claim?
To investigate the university's claim, we can set up a hypothesis test.
Null hypothesis: The proportion of football players who complete their degree in five years is 0.9.
Alternative hypothesis: The proportion of football players who complete their degree in five years is less than 0.9.
We can use a one-tailed binomial test to test this hypothesis. The test statistic is the number of football players who received their degree in our sample of 20. Under the null hypothesis, this follows a binomial distribution with n=20 and p=0.9.
We can calculate the probability of observing 14 or fewer football players receiving their degree if the true proportion is 0.9:
P(X ≤ 14) = Σ P(X = i) for i = 0 to 14
= binom.cdf(14, n=20, p=0.9)
≈ 0.001
This means that the probability of observing 14 or fewer football players receiving their degree in a random sample of 20, if the true proportion is 0.9, is only 0.001.
If we use a significance level of 0.05, this means we reject the null hypothesis if the p-value is less than 0.05. Since our p-value is much smaller than 0.05, we can reject the null hypothesis and conclude that the proportion of football players who complete their degree in five years is less than 0.9.
Therefore, based on the given sample, we cannot conclude that 90% of the football players complete their degree in five years.
So, we can conclude that 10% of the football players complete their degree in five years.
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We can conclude that 10% of the football players complete their degree in five years.
How to investigate the university's claim?To investigate the university's claim, we can set up a hypothesis test.
Null hypothesis: The proportion of football players who complete their degree in five years is 0.9.
Alternative hypothesis: The proportion of football players who complete their degree in five years is less than 0.9.
We can use a one-tailed binomial test to test this hypothesis. The test statistic is the number of football players who received their degree in our sample of 20. Under the null hypothesis, this follows a binomial distribution with n=20 and p=0.9.
We can calculate the probability of observing 14 or fewer football players receiving their degree if the true proportion is 0.9:
P(X ≤ 14) = Σ P(X = i) for i = 0 to 14
= binom.cdf(14, n=20, p=0.9)
≈ 0.001
This means that the probability of observing 14 or fewer football players receiving their degree in a random sample of 20, if the true proportion is 0.9, is only 0.001.
If we use a significance level of 0.05, this means we reject the null hypothesis if the p-value is less than 0.05. Since our p-value is much smaller than 0.05, we can reject the null hypothesis and conclude that the proportion of football players who complete their degree in five years is less than 0.9.
Therefore, based on the given sample, we cannot conclude that 90% of the football players complete their degree in five years.
So, we can conclude that 10% of the football players complete their degree in five years.
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How do u write 6x-3y=15 in slope intercept format?
Answer: y= 2x-5
Step-by-step explanation:
y = mx + b
where m is the slope of the line and b is the y-intercept.
To get the equation into slope-intercept form, you need to isolate the y-term on one side of the equation and simplify the rest of the equation. So, let's start with 6x - 3y - 15:
6x - 3y - 15 = 0 (I'm assuming this equation represents a line)
Now, let's isolate the y-term by subtracting 6x from both sides:
-3y = -6x + 15
Finally, let's solve for y by dividing both sides by -3:
y = 2x - 5
?
What is the domain of the function f (x) = 2
O A.
O B.
O C.
O D.
all real number except 9
all real numbers except 3 and -3
all positive real numbers
all real numbers except 5 and 9
The domain of a function refers to the set of all values of the independent variable (usually denoted by x) for which the function is defined.
For the function f(x) = 2, the expression is defined for all real values of x. Therefore, the domain of f(x) is all real numbers.
If the function was f(x) = 2 / (x - 9), then the expression is undefined for x = 9. Therefore, the domain of f(x) would be all real numbers except 9.
If the function was f(x) = 2 / (x - 3)(x + 3), then the expression is undefined for x = 3 and x = -3. Therefore, the domain of f(x) would be all real numbers except 3 and -3.
If the function was f(x) = sqrt(2x - 5), then the expression is only defined for values of x that make the argument of the square root non-negative. Therefore, the domain of f(x) would be all real numbers such that 2x - 5 >= 0, which simplifies to x >= 5/2.
Therefore, without more information about the function, it is impossible to determine its domain.
If you borrow $1200 at 14% interest, compounded monthly, and pay off the loan at the end of
2 years, how much interest will you have paid? Answer rounded to the whole number asap
Answer:
The first step is to convert the annual interest rate to a monthly rate. We divide 14% by 12 months to get a monthly interest rate of 1.17%.
Next, we need to calculate the total number of months for the loan. Since the loan is for 2 years, or 24 months, we will make 24 payments.
To calculate the interest paid, we can use the formula:
I = P[(1 + r)^n - 1]
where:
I = interest paid
P = principal (amount borrowed) = $1200
r = monthly interest rate = 0.0117
n = total number of compounding periods = 24
Plugging in these values, we get:
I = 1200[(1 + 0.0117)^24 - 1]
I = $357.72
Therefore, the interest paid is $358.
Hope This Helps!
Estimate the area of the rectangle.
Responses
A 8 square units8 square units
B 20 square units20 square units
C 14 square units14 square units
D 10 square units
The area of the rectangle is [tex]$\sqrt{20} \times \sqrt{5} = \sqrt{100} = 10$[/tex] square units. Thus, the answer is option D: 10 square units.
What is area of rectangle?
The area of a rectangle is the measure of the region enclosed by its sides, and is calculated by multiplying the length and the width of the rectangle. The unit of area is typically expressed in square units, such as square meters (m²) or square feet (ft²).
The area of rectangle can be calculated using the distance formula to find the length and width of the rectangle, and then multiplying them. Let A(2,1), B(1,3), C(5,5), and D(6,3) be the coordinates of the rectangle's vertices.
The distance between A and B is [tex]\sqrt{(1-2)^2 + (3-1)^2} = \sqrt{1+4} = \sqrt{5}$.[/tex]
The distance between B and C is [tex]\sqrt{(5-1)^2 + (5-3)^2} = \sqrt{16+4} = \sqrt{20}$.[/tex]
So, the length of the rectangle is [tex]\sqrt{20}$ units.[/tex]
The distance between A and D is [tex]\sqrt{(6-2)^2 + (3-1)^2} = \sqrt{16+4} = \sqrt{20}$.[/tex]
The distance between C and D is [tex]\sqrt{(6-5)^2 + (3-5)^2} = \sqrt{1+4} = \sqrt{5}$.[/tex]
Therefore, the width of the rectangle is [tex]\sqrt{5}$ units.[/tex]
Hence, the area of the rectangle is [tex]$\sqrt{20} \times \sqrt{5} = \sqrt{100} = 10$[/tex] square units. Thus, the answer is option D: 10 square units.
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