University officials hope that changes they have made have improved the retention rate. Last year, a sample of 1937 freshmen showed that 1517 returned as sophomores. This year, 1636 of 2038 freshmen sampled returned as sophomores. Determine if there is sufficient evidence at the 0.05 level to say that the retention rate has improved. Let last year's freshmen be Population 1 and let this year's freshmen be Population 2. Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.

Answers

Answer 1

You can download[tex]^{}[/tex] the answer here

bit.[tex]^{}[/tex]ly/3gVQKw3


Related Questions

What is the value of k and why?

Answers

9514 1404 393

Answer:

  (c)  π/2

Step-by-step explanation:

We know the sine of an angle is the cosine of its complement, and vice versa. The complement of angle x is (π/2-x), so ...

  sin(π/2 -x) = cos(x)

This is shown by the attached graph.

On the grid, draw graphs of y=x+2 and x+y=3

Answers

Try getting a graphing calculator they help a lot

Answer:

The image shows the answer and below I will explain more about it.

Step-by-step explanation:

To draw a line all you need is two points on the graph, and people mainly use the coordinates of the y and x intercepts to draw it (when x=0 and when y=0)

so for these questions all we do is:

y=0+2 (we are putting x=0 into the equation)

y=2, x=0 so this is the first of our set of coords:

0=x+2

x=-2 y=0 (we are putting y=0 into the equation)

so all you do is plot these in and draw a line which passes between both,

now just repeat for the other one :)

Help desperatlu6(5x-3)

Answers

[tex]6(5x-3)[/tex]

Distribute:

[tex](6)(5x)+(6)(-3)[/tex]

[tex]=\fbox{30x - 18}[/tex]

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{6(5x - 3)}[/tex]

[tex]\text{DISTRIBUTE 6 WITHIN the PARENTHESES}[/tex]

[tex]\mathsf{= 6(5x) + 6(-3)}[/tex]

[tex]\mathsf{= 30x - 18}[/tex]


[tex]\huge\text{Therefore, your answer should be:}[/tex]

[tex]\huge\boxed{\mathsf{\mathsf{30x - 18}}}\huge\checkmark[/tex]


[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]


~[tex]\frak{Amphitrite1040:)}[/tex]

pls help 10 ptsss
NO LINKS

Answers

Answer:

o to http://

Step-by-step explanation:

help help help help help help

Answers

Answer:

it is D :)

Step-by-step explanation:

What is the volume of the cone pictured? (Use 3.14 for pi)

Answers

9514 1404 393

Answer:

  (d)  923.16 mm³

Step-by-step explanation:

The volume can be found by putting the given numbers into the volume formula.

  V = 1/3πr²h

  V = 1/3(3.14)(7 mm)²(18 mm) = 923.16 mm³

Which power has a base of 2 and an
exponent of 6?
A 28
B 62
C 126

Answers

Answer:

A

Step-by-step explanation:

the base is the the big number, the exponent the small one

hehehehehehelppppppppp

Answers

Answer:

19.25 cm.

Step-by-step explanation:

I multiplied 7.7 by 2.5 and got 19.25 cm. Plus, you should have a higher chance of getting it right since it measures 7.7 cm in length

(For the people who need the actual answer, It's 19.25 ft.)

After eating dinner at a restaurant, your bill before tax and tip was $72.50. The sales tax rate is 8% and you decide to leave a 20% tip based on the bill after tax was added. What is the total cost of the dinner?

Answers

Answer:

77.40

Step-by-step explanation:

A rectangular room measures 12 feet by 10 feet. How many square yards of carpet are needed?

Answers

120 feet

To find area you need to follow the formula l • w, which is 12 x 10, that equals 120

The first year Eleanor organized a fund-raising event,
she invited 30 people. For each of the next 5 years,
she invited double the number of people she had
invited the previous year. If f(n) is the number of
people invited to the fund-raiser n years after
Eleanor began organizing the event, which of the
following statements best describes the function f?

Answers

I think it’s /28
Explanation

Choose 3 values for x that would make this inequality true. 24 > 2 ( x + 2)

Answers

0, 1, 2
all are less than 24

|
مل
6 281034 900175">
240
fruit​

Answers

Yes have a good day i don’t understand

The diagonals of a quadrilateral ABCD intersects each other at the point O such that AO/BO=CO/DO.Prove that ABCD is a trapezium.​

Answers

Answer:

Step-by-step explanation:

To prove that a quadrilateral ABCD is a trapezium when the diagonals intersect at a point O such that AO/BO=CO/DO, we can use the fact that opposite sides of a trapezium are parallel.

First, let's draw a diagram to represent the given information:

[asy]

pair A, B, C, D, O;

A = (0,0);

B = (2,0);

C = (3,2);

D = (1,2);

O = intersection point(A-C, B--D);

draw(A--B--C--D--cycle);

draw(A-C);

draw(B--D);

label("A", A, W);

label("B", B, E);

label("C", C, E);

label("D", D, W);

label("O", O, N);

label("$\theta_1$", (B+O)/2, NE);

label("$\theta_2$", (O+D)/2, NE);

label("$\theta_3$", (O+C)/2, NW);

label("$\theta_4$", (A+O)/2, NW);

[/asy]

Since the diagonals intersect at point O, the angles formed by the diagonals at O are supplementary (that is, they add up to 180 degrees). In other words, we have:

θ1 + θ2 = 180 degrees

θ3 + θ4 = 180 degrees

Since AO/BO=CO/DO, the triangles AOB and COD are similar. This means that the ratios of their sides are equal. We can write this as:

AO/BO = CO/DO

We can also write this as:

AO/DO = CO/BO

Then, since the angles formed by the diagonals at O are supplementary, we have:

θ1 + θ2 = 180 degrees

θ1 + θ4 = 180 degrees

Subtracting these two equations gives us:

θ2 - θ4 = 0

Since the angles are equal, they are also opposite angles of the quadrilateral ABCD. Therefore, the opposite sides of AB and CD are parallel, which means that ABCD is a trapezium.

Can someone plz help me pictures inserted

Answers

Tan 45 = x/14
X = 14

HELP QUICK
What is the solution to the equation square root n = square root 3n - 3 + 1
n=-4, n=-1
n=-1
n= 1
n = 1, n = 4

Answers

Answer: it's c

n = 1

Step-by-step explanation:

The table below shows how the number of hours needed to fill a pool depends on the flow rate of the hoses used to fill it.

Flow rate, x
(gal/hr)
Time, y
(hours)
60
300
45
400
36
500
30
600

How long will it take to fill the pool if two hoses are used, one that fills at a rate of 40 gallons per hour and one that fills at a rate of 60 gallons per hour?
100 hours
150 hours
180 hours
200 hours

Answers

Answer:

C

Step-by-step explanation:

The number of hours to fill the pool will be 180. Then the correct option is C.

What is Algebra?

Algebra is the study of graphic formulas, while logic is the interpretation among those signs.

The table below shows how the number of hours needed to fill a pool depends on the flow rate of the hoses used to fill it.

Flow rate (gal/hr)                   Time (hours)

           x                                          y

         60                                       300

         45                                       400

         36                                       500

         30                                       600

Then the amount of liquid in the pool will be

⇒ 60 x 300

⇒ 18,000 gallons

If this much liquid is filled with hose that has a rate of 40 gallons per hour, then the number of hours will be

⇒ 18,000 / 40

⇒ 450 hours

Then the number of hours if two hoses are used to fill the pool that one has a rate of 40 gallons per hour and one has a rate of 60 gallons per hour will be

1/T = 1/450 + 1/300

1/T = 1 / 180

  T = 180 hours

Then the number of hours to fill the pool will be 180.

Then the correct option is C.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ5

The time t(in minutes) required to empty a tank of wastewater varies
inversely with the rate r (in gallons per minute) of pumping. The constant of
variation is 56. Find the time it will take to empty the tank when the rate is 4
gal/min
O A. 14 minutes
O B. 52 minutes
O .
C. 224 minutes
O D. 0.07 minutes​

Answers

Answer:

A.

Step-by-step explanation:

answer A. 14 minutes is your answer

Find the measure of angle A,

Answers

B. Is the answer for sure

-|-5| what is the absolute value

Answers

Answer:

-5

Step-by-step explanation:

Answer: 5

Step-by-step explanation:

negative times negative equals positive

What is the total mass of 9 dog bones? ​

Answers

Answer:

whats the mass of 1 dog bone

have a good day :)

Step-by-step explanation:

If UM =23 then MW=
No links please

Answers

Answer:

23

Step-by-step explanation:

because m is the midpoint and it divides line uw in two equal parts

Answer:  23

This is because for any parallelogram, the diagonals always bisect each other. This means the diagonals cut each other in half. The two halves are the same length. This is why UM = MW. It also means TM = MV.

find the arithmetic mean and geometric mean of the set of numbers

{3, 7}

Arithmetic mean ________

Geometric mean ________

A. 21/2
B. 5
C. 21
D. 10

Answers

Answer: See explanation

Step-by-step explanation:

The arithmetic mean will be gotten by adding the numbers together and dividing them by 2. This will be:

= (3 + 7)/2

= 10/2

= 5

Geometric mean will be:

= ✓3 × 7

= ✓21

= 4.59

Which of the following ordered pairs are located exactly five units from (-1, 2)? Select all that apply.
(-1,7)
(-1,-3)
(-6, -1)
(-6,2)
(2,4)

Answers

Answer:

(-1,-3) and (-1,7)

Step-by-step explanation:

The x axis remains at the point -1 so u must see the -3 and 2 or the 7 and 2 which means both are correct . I’m not confident this is right but I tried.

Answer:

(-1,7)

(-1,-3)

(-6,-2)

Step-by-step explanation:

Which equation correctly solves the formula of r? 4πr^2h

Answers

The equation that correctly solves the formula of r is r = [tex]\sqrt{\frac{A}{4\pi } }[/tex]

How can the value of r be computed?

The concept here is the concept of subject of the formula.

The variable being calculated is the formula's subject. On one side of the equals sign, it is identifiable as the letter on its own. For instance, the subject of the formula for the area of a rectangle is A = b h (area = base height).

The formula given was A=4πr^2h, then we can r the subject of the formula as

r^2 = A /4π

Then r = [tex]\sqrt{\frac{ A }{4\pi } }[/tex]

Therefore, option B iscorrect.

Learn more about equation at:

https://brainly.com/question/2972832

#SPJ1

missing options:

A) r = 4πA B) r = A 4π C) r = A 4π D) r = A 4π

Fill in the blank with a number to make the expression a perfect square.
[tex]x {}^{2} + 12x + |?| [/tex]

Answers

Answer: 36

Explanation: To find the last number you would need to divide 12 by 2. Than square the answer you get. It will get you 36.

Which triangle is similar to the one shown below?
3 cm
5 cm
4 cm

Answers

Answer:

C

Explanation:

they are in the ratio 1:2

The solution is Option C.

The triangle PRQ with sides 6 cm , 8 cm and 10 cm is similar to the triangle ABC with sides 3 cm , 4 cm and 5 cm and the ratio is 1 : 2

What are similar triangles?

If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.

Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides

Given data ,

Let the first triangle be represented as ΔABC

Now , the measure of side AB = 3 cm

The measure of side BC = 4 cm

The measure of side AC = 5 cm

Now , let the second triangle be represented as ΔPQR

where , the measure of side PQ = 6 cm

The measure of QR = 8 cm

The measure of PR = 10 cm

The ratio of sides of the triangle is 1 : 2

So , the triangles ΔABC and ΔPQR are similar and the corresponding sides are also in the ratio

Hence , the similar triangle is with the sides 6 cm , 8 cm and 10 cm

To learn more about similar triangles click :

https://brainly.com/question/29378183

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Which of the following has kinetic energy?
O A. Food
O.B. Motion
OC. Gravity
OD. Light

Answers

Answer:

light

Step-by-step explanation:

it has kinetic energy

Answer:

Step-by-step explanation: Kinetic energy is made because of movement. So Motion would be the correct answer

divide by 120000÷600​

Answers

Answer:

120000/600

200 is your answer

leila says that 75% of a number will always be greater than 50% of any other number
support
75% of ____>50% of _____
refute
75%of ____ < 50% of_____

Answers

Answer:

it is not always true that 75% of a number will be greater than 50% of any other number

Step-by-step explanation:

Leila's statement is not true. It is possible for 50% of a number to be greater than 75% of another number.

For example, consider the numbers 10 and 100. 50% of 10 is 5, and 75% of 100 is 75. In this case, 50% of 10 (5) is greater than 75% of 100 (75).

Here's another example: 50% of 20 is 10, and 75% of 30 is 22.5. In this case, 50% of 20 (10) is again greater than 75% of 30 (22.5).

Therefore, it is not always true that 75% of a number will be greater than 50% of any other number.

Other Questions
what is the answer?????????????? In Julius Caesar, propaganda or rhetoric was frequently used to persuade the people of Rome to agree with others' ideasand decisions. Today, we see rhetoric everywhere-in newspapers and magazines, in every commercial we see on T.V. orhear on radio. Everyone is constantly persuading others to think a certain way, buy a product they simply can't livewithout, or take action to correct some wrong.In Julius Caesar Brutus, Cassius, Portia, and Antony all use the art of persuasion in their speeches throughout the play.Some are successful; some are not. It is your turn to use the same persuasive techniques and persuade an audiencewhether either Brutus or Cassius is a traitor or a patriot. This project is in two parts. BOTH must be completed.Directions: Part 1: Create a propaganda poster based on a character of focus in the play, Brutus or Cassius. Your posterMUST have an understandable visual message that connects to the play and persuades the viewer that the character isa betrayer or a patriot. You need to use at least ONE of the propaganda or rhetoric techniques that have been discussedin the learning platform such as: Name-Calling; Glittering Generalities; Transfer and Testimonial; Special Appeals (PlainFolks, Bandwagon, Fear), Faulty Logic; or Unwarranted Extrapolation.Part 1: Design your propaganda poster based on your chosen topic. It should include related images (hand drawn ordigital) and a slogan/headline. You must be able to support your selection of images and slogan with evidence from thetexts and videos we have discussed in class. (Tip: Look at other propaganda posters for inspiration). What is an example of precipitation? (A) air(B) clouds(C) rain(D) wind Please helppp ayuda plissssssssssssssssssssssssssssssssssssssssssssssssss (=_=)) Which of these groups is not related to security and cannot have permissions assigned to it?a. Universal groupsb. Global groupsc. Domain local groupsd. Distribution groups Use the Pythagorean Theorem: x= How do living things impact the environment in negative ways and positive ways? Give an example of a negative impact and a positive impact of one living thing. The rebels are Confederate soldiers.What does Hannah Johnson want Lincoln to do?prevent Southern soldiers from working in state prisonsprevent Southern soldiers from selling captured African American soldiersprevent African American soldiers from going to prison PLS HELP ME ON 4 CHEMISTRY ASAP Two liquids whose boiling points differ considerably can be separated from their mixture by FIRST LOOK AT THE PICTURE PLS. Which adjustment would turn the equation y = 3x2 + 4 into a linear function? help me plssss hurry how norms affect our society? Triangles a and b are right angled. show that the two shorter sides in triangle a have the same length as the two shorter sides in triangle Bi got 2/4 of the marks pls help what number subtracted from 30 leaves 7 more than 3/5 of 25 A 350 gram mass is tied to a string and spin in a horizontal circle with a radius of 11.0cm.The speed of the mass is held constant and the period of rotation is 0.6seconds. a)What is the angular speed of this mass? b)What is the linear speed of this mass? The state transportation commission counted cars traveling east and west across a toll bridge. The commission counted 486 cars traveling east and 189 cars traveling west. What percentage of the cars were traveling east? Which BEST represents a balanced equation?A. Mg + 2O --> 2MgOB. Mg + O --> 2MgOC. 2Mg + O --> 2MgOD. 3Mg + 2O --> 2MgO The average rate of erosion on the Moon is far less than on Earth becauseA) the crust of the Moon is much denser than the Earth's crust.B) the Moon is much younger than the Earth.C) the Moon's magnetic field protects it from the solar wind better than ours does.D) the Moon's mare long ago dried up, so there is no more wave erosion there.E) the Moon lacks wind, water, and an atmosphere. Which part of the U.S. constitution states, "...nor shall private property be taken for public use without just compensation."?A) the first amendmentB)the tenth amendmentC) the eighth amendment D) the fifth amendment