Your experiment is using a one-tailed test with an alpha level of .05. Your alternative hypothesis predicts an increase in test scores. The correct value of z crit for this test is ____________.

Answers

Answer 1

Answer:

The correct value of z crit for this test is +1.645

Step-by-step explanation:


Related Questions

There are `11` dancers in a performance. Their ages (in years) are:  `5. 5`, `6`, `6`, `6. 5`, `7`, `7. 5`, `8`, `8`, `8. 5`, `9`, `9` What is the median age of the dancers?

Answers

Answer:

7.5

Step-by-step explanation:

The median is the middle of a set of numbers. In this case, the median is 7.5.

HELP please this is due soon

Answers

Answer:

Step-by-step explanation:

Side Opposite to ∠x is called YZ

The side Opposite to ∠y is called XZ (that's the hypotenuse of the triangle)

Side Opposite to ∠Z is XY

Answer:

Side apposite to angle X is YZ

Side apposite to angle Y is XZ

Side apposite to angle Z is XY

Hope this helps you

have a great day

what is area of the polygon​

Answers

hii ,

area of polygon : 18

This is lesson 9.4 - special right triangles.
Please help me

Answers

Triangle ABC is an equilateral triangle. it is equiangular. Therefore, the value of x is 60 degrees.

What is an equilateral triangle?

An equilateral triangle is a triangle that has all it sides and angles equal to each other.

An equilateral triangle is equiangular.

Therefore, the angles of an equilateral triangles are equal to 60 degree each.

Recall the sum of an angle of a triangle is 180 degrees.

Therefore, the value of angle x is 60 degrees.

learn more on equilateral triangle here: https://brainly.com/question/3461022

HELP ASAP !!!!!Consider the function f(x) = 10x and the function g(x), which is shown below. How will the graph of g(x) differ from the graph of f(x)? A. The graph of g(x) is the graph of f(x) shifted 6 units down. B. The graph of g(x) is the graph of f(x) shifted to the right 6 units. C. The graph of g(x) is the graph of f(x) shifted to the left 6 units. D. The graph of g(x) is the graph of f(x) shifted 6 units up.

Answers

Answer:

the answer is B, the graph of g(x) is the graph of f(x) shifted to the right 6 units. hope this helps!

Answer:

C. The graph of g(x) is the graph of f(x) shifted to the left 6 units.

Hope this helps and good luck!

A composite figure is formed by combining a square and a triangle. Its total area is 49.5 ft. The area of the
triangle is 33.5 ft. What is the length of each side of the square? Complete the explanation.
The area of the square is
it?, so each side of the square is
ft.

Answers

Answer:

The length of each side of square is 5ft.

Step-by-step explanation:

A composite figure is formed by combining a square and a triangle. Its total area is 32.5ft squared.

The area of the triangle is 7.5ft squared.Area of combined figure - area of triangle = area of square.

32.5 ft squared - 7.5 ft squared = 25 ft squared.

So, area of square = 25 ft squared.

Now, by putting the formula for getting the length of each side:

Let the side = a.

Area of square = 25 ft squared

Area of square = a²

Using square root both sides we get:

So, the side = 5 ft.

Therefore, the length of each side of square is 5ft.

PLS HELPP WHAT IS THE ANSWER???

Answers

Answer:

-220

Step-by-step explanation:

Answer:

Let us start by plugging in x=2 into all variables x and y=1 into all y's

so: The result is -220

What is the equation that represents the function

Answers

Answer:

y= 1/5 x -1

Step-by-step explanation:

Find two points ( any two of the three given)

find the slope between   5,0   and   10, 1

    ( 1-0)/(10-5)   = m = slope   = 1/5

so the line is of the form   y = mx + b :

                                            y = 1/5 x + b     sub in any point to calculate 'b'

                                             1 = 1/5 (10) + b

                                                    b = -1

y = 1/5 x -1   is your answer

Factorise the following:
A. 4xy-16
B. xy+2xy-x
C. 2x²-18x+12
D. 5xy+20x-9y-36

Answers

A. 4xy-16

=4(xy−4)

B. xy+2xy-x

3xy−x

=x(3y−1)

C. 2x²-18x+12

2x²−18x+12

=2(−9x+6)

D. 5xy+20x-9y-36

5xy+20x−9y−36

=(y+4)(5x−9)

5.7.PS-7
Solve the inequality. Then graph the solutions on a number line.
6< - 3(2x-6)
A. X≥
• B. X >
O C. X <
O D. XS

Answers

the answer is a x equal to or greater than

Help oh my god give me the area of this shape I’m gonna cry

Answers

Answer:

96

Step-by-step explanation:

2 x 8 =16

8 x 7 = 56

3 x 8 = 24

24 + 56 = 80

80 + 16 = 96

Hi!

The area of the entire figure is 76 units squared.

NOTE: This question has two different shapes: a rectangle, and a triangle.

Rectangle Formula:

Length * Width = Area

[tex]LW=A[/tex]

Triangle Formula

(Base * Height) / 2 = Area

[tex]\cfrac{bh}{2}=A[/tex]

Let's first get the rectangle's area:

[tex]LW=A[/tex]

[tex]8*7=A[/tex]

[tex]56=A[/tex]

The area of the rectangle is 56.

Now, for the top triangle:

[tex]\cfrac{bh}{2} =A[/tex]

[tex]\cfrac{8*2}{2} =A[/tex]

[tex]8=A[/tex]

The area of the top triangle is 8.

Now, for the bottom triangle.

[tex]\cfrac{bh}{2} =A[/tex]

[tex]\cfrac{8*3}{2} =A[/tex]

[tex]12=A[/tex]

The area of the bottom triangle is 12.

Now, add them all together:

[tex]56+8+12=76[/tex]


Multiplying by 1.19 is the same as increasing by

Answers

the answer for the picture would be 21
1.19 - 19%

The first thing you should do in solving a word problem is estimate what you think the answer would be.

True
False

Answers

Answer:

The answer is True.

Step-by-step explanation:

Estimate the Answer Before Solving Having a general idea of a ballpark answer .Or the problem lets students know if their actual answer is reasonable or not.

Martina's inground swimming pool is finally finished, and all that's left to do is fill it with water. Martina's family decides to fill their pool using their garden hose to save money, even though they know it will take a really long time. The swimming pool is 10 meters long and 5 meters wide, and Martina's family wants the water to be 2 meters deep. Water from the garden hose flows at a rate of 2,500 liters, or 2.5 cubic meters, per hour.
How long will it take to fill the pool?
Write your answer as a whole number or decimal. Do not round.
hours

Answers

Answer:

40 hours

Step-by-step explanation:

Find the required water volume using the volume of prism formula

V = lwhV = 10*5*2 = 100 m³

Find the time required

100/2.5 = 40 hours

Answer:

40 hours

Step-by-step explanation:

The swimming pool can be modeled as a rectangular prism.

Volume of a rectangular prism

  [tex]V = lwh[/tex]

where:

l = lengthw = widthh = height

First, calculate the volume of water needed:

Given:

l = 10 mw = 5 mh = 2 m

Substitute the given values into the formula and solve for V:

[tex]\implies V=10 \cdot 5 \cdot 2=100\:\: \sf m^3[/tex]

If the water flows as a rate of 2.5 m³/h, divide the volume by the rate to calculate how long it will take to fill the pool:

[tex]\implies \sf Time=\dfrac{Volume}{rate}[/tex]

[tex]\implies \sf Time=\dfrac{100}{2.5}[/tex]

[tex]\implies \sf Time=40\:\:hours[/tex]

simplify the answer should be 2/5 i just don’t understand how to get it

Answers

Simplify the top, then the bottom. Then cancel out x^2 to get 2/5

Step-by-step explanation:

((8x⁶)²)⅙ = (64x¹²)⅙

= (2⁶x¹²)⅙

= 2x²

(625x⁸)¼ = (5⁴x⁸)¼

= 5x²

2x²/5x² = 2/5

what is the surface area of this?

Answers

Answer:

Surface Area = 96

Step-by-step explanation:

Area of Triangle: Area = 1/2 * Base * Height

Top Triangle:

Area = 1/2 * 6 * 2 = 6

Bottom Triangle:

Area = 6

Area of Rectange: Area = Length * Height

Left Rectangle:

Area = 7 * 3 = 21

Mid Rectangle

Area = 7 * 6 = 42

Right Rectangle

Area = 21

Surface Area = TopTri + BotTri + LeftRect + MidRect + RightRect

Surface Area = 6 + 6 + 21 + 42 + 21 = 96

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

  a)  1.6×10⁻⁶

  b)  2×10⁷

Step-by-step explanation:

You want the product or quotient in standard form of ...

(8×10⁻³)×(2×10⁻⁴)(6×10²)÷(3×10⁻⁵)

Exponents

The rules of exponents apply:

  (a^b)(a^c) = a^(b+c)

  (a^b)/(a^c) = a^(b-c)

Scientific notation

A number is said to be in scientific notation if there is one digit to the left of the decimal point, and the multiplier is expressed to an appropriate power of 10. The power of 10 may need to be adjusted so the decimal point is in the correct place. In general, the power of 10 represents the place value of that most-significant digit.

Standard form

In the US, a number is written in standard form as a sequence of digits with an optional decimal point. Integers are written so the least-significant digit has a place-value of 1.

Elsewhere, a number is written in standard form when it is written in scientific notation.

We have given both forms a number here, so you will need to choose the one that is standard form where you are.

a) (8×10⁻³)×(2×10⁻⁴)

The product is (8×2)×10^(-3-4) = 16×10^-7 = 1.6×10^-6

= 0.0000016

b) (6×10²)÷(3×10⁻⁵)

The quotient is (6/3)×10^(2-(-5)) = 2×10^7

= 20,000,000

<95141404393>

Please help me ):
.
.
.
.


Jeremy is x years old. He is 5 years younger than his sister. Together, the sum of their ages is 29 years. Enter an equation that can be used to find Jeremy's age (x).​

Answers

Answer:

Jeremy is 12 years old

Step-by-step explanation:

Jeremy age=X

Sister age=Y

1. X+Y=29 (sum of their ages)

2. X=Y-5 (he is 5 years younger than his sister)

*Substitute eq 2 into eq 1

Y-5+Y=29

2Y=29+5

2Y=36 (divide both sides by 2)

Y =17

Substitute value of Y into eq 1 to find X

X+17=29

X=29-17

X= 12

Checking answer:

12+17=29

17-5=12

Hence why Jeremy is 12

whats the y intercept and rate of change ill give 20 pt please help me thank u

Answers

Answer:

y-intercept= (0,7) and rate of change=

Step-by-step explanation:

The y-intercept of a graph is the point on the graph where it intersects the y-axis or where x=0. In this case it is (0,7) so that is the y-intercept. The rate of change is equal to y2-y1 divided by x2-x1. Basically, just pick 2 random points on the line and subtract their y coordinates, then subtract their x-coordinates and divide the answers with each other. So, one point is (0,7) and another point is (2,4). Therefore, rate of change is 7-4 divided by 0-2. This gives us a rate of change of -3/2

PLEASE HELPP QUICKLY!!!!!

Answers

Answer:

the first option, LON and NOP

Step-by-step explanation:

adjacent angles are side by side and cannot overlap

Answer:

1) angle LOM and angle MON

2) A. angle LON and angle NOP

y = 6x - 3 non linear or linear

Answers

Answer:

Linear

Step-by-step explanation:

The equation is in the form y = mix + b, which means it is linear.

7/5 as a mixed number​

Answers

1 2/5 is a mixed number of 7/5

Answer:

The answer is given in the picture

Step-by-step explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

LET ME KNOW IF YOU NEED EXPLANATION

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

The number of items, n, made in 1 hour by a machine is given by n=30/t, t is the time in minutes the machine takes to make one item. The value of r changes for different types of item. On the grid, plot the points that would be used to draw the graph of n = 30/t for values of t from 1 to 4

Answers

The equation n = 30/t is an illustration of an inverse variation

The points on the graph are: (1,30), (2,15), (3,10) and (4,7.5)

How to plot the graph?

The equation is given as:

n = 30/t

When t = 1, we have:

n = 30/1

n = 30

When t = 2, we have:

n = 30/2

n = 15

When t = 3, we have:

n = 30/3

n = 10

When t = 4, we have:

n = 30/4

n = 7.5

So the points on the graph are:

(1,30), (2,15), (3,10) and (4,7.5)

See attachment for the graph of the equation n = 30/t

Read more about inverse variation at

https://brainly.com/question/6499629

Solve the system of equations using elimination: 8x - 8y = 0 and
-5x - 7y= -12.

Answers

Answer:

My answers were (1,1) for both lmk if it works ;)

Step-by-step explanation:

1 A triangle ABC ,AB = 7.8 cm,AC= 7 cm an
Isosceles Triangle
Scalene triangle
Equilateral triangle
Right angled Triangle

Answers

Answer:scalene

Step-by-step explanation:none of the sides are equal length

1) lan's new Mercedes cost him $75,000. From the
moment he drives it off the lot, it will depreciate
by 20% each year for the first five years. What will
be the car's value be at the end of five years?
(Round to the nearest whole number.)

Answers

Answer: The answer to this is 3000,

Step-by-step explanation:  

I think this is the answer because when you find out what 20% of 75000 is, (which is 15000) you can divide 20% by 5 and there is your answer, i hope this helps

What is the area for 12ft and 8.5 for a parallelogram

Answers

Answer:

102 ft^2

Step-by-step explanation:

Im pretty sure area for a parallelogram is the same as a rectangle, so A = bh which would be 12 x 8.5

How do you solve this? In volume...

Answers

The answer is 30. Have a good day!

Can someone help I’m in a bit of a pickle here

Answers

morgan earns more money per hour on saturday bc 63/6 = 10.5 and that’s more than 9.5 so

Step-by-step explanation:

Im maybe wrong but it might be that morgan earns morgans hourly rate on friday is 12$

A right triangle has one side that is 6 inches
long, and a height of 12 inches. What is the
perimeter of the triangle?

Answers

Answer:

31.4 inches

Step-by-step explanation:

36+144 = 180

sqrt(180) = 13.41

6 + 12 + 13.4

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