A test with hypotheses H0:μ=100,Ha:μ>100, sample size 60, and assumed population standard deviation 8 will reject H0 when x¯>101.7. What is the power of this test against the alternative μ=102.5?
A. 0.5398
B. 0.4602
C. 0.2193
D. 0.7807

Answers

Answer 1

The probability is D. 0.7807. Therefore, the answer is D. 0.7807.

To calculate the power of the test, we need to determine the probability of rejecting the null hypothesis when the alternative hypothesis is true. In other words, we want to find P(reject H0 | Ha is true).

First, we need to calculate the critical value that corresponds to the level of significance of the test. Since the alternative hypothesis is one-tailed (Ha:μ>100), and the level of significance is not given, we'll assume a significance level of 0.05 (commonly used in hypothesis testing).

Using a standard normal distribution table or calculator, we find that the critical value for a one-tailed test at a 0.05 level of significance is 1.645.

Next, we need to calculate the standard error of the mean (SEM), which is equal to the population standard deviation divided by the square root of the sample size.

SEM = 8 / √60 = 1.0328

To find the test statistic (z-score) for the alternative hypothesis, we use the following formula:

z = (x¯ - μ) / SEM

z = (101.7 - 102.5) / 1.0328 = -0.775

The area to the right of this z-score under the standard normal distribution represents the probability of rejecting the null hypothesis when the alternative hypothesis is true.

Using a standard normal distribution table or calculator, we find this probability to be:

P(z > -0.775) = 0.7807

for such more question on probability

https://brainly.com/question/13604758

#SPJ11

Answer 2

The probability is D. 0.7807. Therefore, the answer is D. 0.7807.

How to calculate the value

Using a standard normal distribution table or calculator, we find that the critical value for a one-tailed test at a 0.05 level of significance is 1.645.

Next, we need to calculate the standard error of the mean (SEM), which is equal to the population standard deviation divided by the square root of the sample size.

= 8 / √60 = 1.0328

To find the test statistic (z-score) for the alternative hypothesis, we use the following formula:

z = (x - μ) / SEM

z = (101.7 - 102.5) / 1.0328 = -0.775

Using a standard normal distribution table or calculator, we find this probability to be:

P(z > -0.775) = 0.7807

Learn more question on probability

brainly.com/question/13604758

#SPJ4


Related Questions

you put $350 in an account the account earns $17.50 simple interest in 2.5 years was the annual interest rate​

Answers

7$ per year
Sorry I don’t have an explanation

Can someone help me out with these?
"write a linear equation for line m,n,l,p"​

Answers

Answer:

Step-by-step explanation:

m:  y = -2x + 4

n:    y = x - 1

l:      y = 4

p:     x = -4

m: y=-2x+4

slope: 2

2/1=2

Its negative because the line is going down from left to right

y-intercept:

it crosses the y axis at (0,4)

n: y=x-1

slope: 1

1/1=1

Its positive because the line is going up from left to right

y-intercept:

it crosses the y axis at (0,-1)

l: y=4

slope: 0

A vertical line's slope is always 0

y-intercept:

it crosses the y axis at (0,4)

p: x=-4

To find the equation for a horizontal line, you need to find what x always is no matter what.

I’ll give the Brainliest to who answers these questions with a reasonable explanation.

While surfing the Internet, you find a site that claims to offer “the most popular and the cheapest DVDs anywhere.” Unfortunately, the website isn’t clear about the how much they charge for each DVD, but it does give you the following information:
(The information is the table up there)

a. What is the slope of the line containing the points?

b. What does the slope represent in this problem?

c. What is the y‐intercept of the line that contains the points?

d. What does the y‐intercept represent in this context?

e. What is the equation that represents the line?

Thank you.

Answers

Answer:

Answer:

a. 9

b. The slope represents the cost for every new DVD

c. 6

d. The song represents the base price, or the price that it would cost for 0 DVDs

e. y = 9x + 6

Explanation:

I made a graph on a piece of graph paper and these were the answer I got.

please help solve :D

Answers

Answer:

101

Step-by-step explanation:

4x+11 + 6x -1 = 180 (because they are supplementary)

10x =170

x = 17

angle L = 6(17) - 1 = 101

Angle L and Angle N are congruent. so N = 101

The answer to this is101

Select the correct answer. Factor completely.12x^2+28x 4x(3x + 7) 4x(3x + 28) 4x2(3x + 7) 4(3x + 7)

Answers

Answer:

4x(3x+7)

Step-by-step explanation:

12x^2+28x

factor out the 4x

4x(3x+7)

The answer would be 4x(3x+7)

Hope this helps

Have a great day/night

Feel free to ask any questions

plzz answer fasttttt​

Answers

Answer:

45 square centimeters.

Step-by-step explanation:

Length(L) = 9 cm

breadth (b) = 5 cm

Area of the rectangle

= L * b

= 9 * 5

= 45 cm²

Hope it will help :)

Answer: 45 square centimeters

Step-by-step explanation: 9cm x 5cm = 45cm

Simplify the expression using order of operations. 15−7×2+23

Answers

Answer: 24

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Multiplication first:

15 - 14 + 23

Addition and Subtraction:

15 - 14 + 23 = 24

I’ll mark as brainliest!!!

Find x and y plz help

Answers

Based on the angles, we know this is a 45-45-90 triangle.

In this type of triangle, x and y will be equal. The formula for the sides is x * rad 2 = 8 .

8/ rad 2 = 5.66

Both X and Y are 5.66 units.

Answer:

x = 6.81 and y = 4.20

Step-by-step explanation:

by using SOHCAHTOA

hypotenus = 8

adjacent = x

opposite = y

sin45° = y/8

y = 8sin45°

y = 6.66

cos45° = x/8

x = 8cos45°

x = 5.66

Jon has to pay $9.00 admission for the skating rink and $2 per hour to
rent roller blades. How many hours can he skate for $19?*
3
5
06

Answers

Answer:

The answer is 5 hours

Step-by-step explanation:

The answer would most likely be 5 hours, hope it helps!

Hi can anyone do this for me please do it on a piece of paper

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

We don't know the drivers' names or when or where they started. We have made the assumption that the second equation pertains to Kylie.

Each line is plotted with the appropriate slope and y-intercept. The slope is the coefficient of x, and represents the "rise" for each unit of "run" to the right.

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helpppppppppppppp

Answers

Ok,It’s the first one

Answer:

its the first one.

Step-by-step explanation:

What is the sum of the measures of the interior angles of a 12-gon ?


A: 1620

B: 1800

C: 1980

D: 2160

Answers

i believe the answer is B: 1800

Answer:

B. 1800 degrees.

Step-by-step explanation:

Just took the quiz on Edg (2020-2021)!!

PLEASE HELP LOOOOOOOKKKKKKKK ATT SS

Answers

Answer:

1

Step-by-step explanation:

d=-4 , f = 3

so, [8-(-4)]/4 × 3

= (8+4)/12

= 12/12

=1

Hope it helps

Answer:

1 is the answer

Step-by-step explanation:

8-(-4) / 4(3) = 1

Can someone help me please

Answers

82 + 0.6h

82 + 0.6(5)= 85

Answer:

85 - 82 = .6h

5 hours

Step-by-step explanation:

85 - 82 = 3h

3 ÷ .6

H = 5

5 hours

Plz help meeeeeeee !!!!!

Answers

Answer:

answer is A

Step-by-step explanation:

simplify: -28+2r+3r+5

simplify more: 5r-23

2(-14+r) - (-3r-5)
-28+2r +3r+5
-23+5r
so, the answer is A

Hope this helps!! :)

The bases of a trapezoid lie on the lines y=2X +7 and y= 2X -5. Write the equation that contains the midsegment of the trapezoid

Answers

Given:

The bases of a trapezoid lie on the lines

[tex]y=2x+7[/tex]

[tex]y=2x-5[/tex]

To find:

The equation that contains the midsegment of the trapezoid.

Solution:

The slope intercept form of a line is

[tex]y=mx+b[/tex]

Where, m is slope and b is y-intercept.

On comparing [tex]y=2x+7[/tex] with slope intercept form, we get

[tex]m_1=2,b_1=7[/tex]

On comparing [tex]y=2x-5[/tex] with slope intercept form, we get

[tex]m_2=2,b_2=-5[/tex]

The slope of parallel lines are equal and midsegment of a trapezoid is parallel to the bases. So, the slope of the bases line and the midsegment line are equal.

[tex]m=m_1=m_2=2[/tex]

The y-intercept of one base is 7 and y-intercept of second base is -5. The y-intercept of the midsegment is equal to the average of y-intersects of the bases.

[tex]b=\dfrac{b_1+b_2}{2}[/tex]

[tex]b=\dfrac{7-5}{2}[/tex]

[tex]b=\dfrac{2}{2}[/tex]

[tex]b=1[/tex]

So, the y-intercept of the required line is 1.

Putting m=2 and b=1 in slope intercept form, we get

[tex]y=2x+1[/tex]

Therefore, the equation of line that contains the midsegment of the trapezoid is [tex]y=2x+1[/tex].

What is the measure of angle 1

Answers

Answer:

the measure of angle 1 is 125

Step-by-step explanation:

hope this you the answer to your question

Answer:

pls give image

Step-by-step explanation:

Which of the following could represent consecutive even integers?

x + 1, x + 2
x + 1, x + 3
2x, 2x + 1

Answers

I’m so sorry I don’t know sorry for the inconvenience

Answer:

only x+1 , x+3 COULD represent consecutive even integers

Step-by-step explanation:

only x+1 , x+3 COULD represent consecutive even integers

Which conveyed the negative message?




pleasssss​

Answers

Is there supposed to be a picture? I don’t see one.

help me, please.....

Answers

Answer:

50 minutes left.

Step-by-step explanation:

The easiest way to do this is to convert all the fractions into minutes

So, she would've spent 1 hour and 30 minutes on her homework and 40 minutes on her telephone. If you add those amounts up, you get 2 hours and 10 minutes. Since she goes to bed 3 hours after dinner, and 2 hours and 10 minutes have gone by, you do 3 hours - 2 hours 10 minutes and you get 50 minutes.

Hope that makes sense. Let me know if you have any questions.

One serving of ice cream contains 1,400 calories. If 322 calories come from fat, what percent of the total calories come from fat?

Answers

Answer:

23%

Step-by-step explanation:

322 ÷ 1400 = 0.23 = 23%

23 %

Step-by-step explanation:

x percent of 1400 calories = 322 calories so, (x × 1400)÷100 = 322x = (322 × 100) ÷1400x = 32200 ÷ 1400x = 23

MARK ME AS BRAINLISTPLZ FOLLOW ME

Bona ma numec claudiu si vreu sa stiu si eu cat face 100+340

Answers

Answer

100+340=440

Step-by-step explanation:

the answer is 440 hope this helps

Whats chicken nugget plus chicken nugget​

Answers

Answer:

MORE CHICKEN NUGGETS

which is smaller 0 or -0​

Answers

Answer:

the answer is -0 , -0 is smaller than 0.

write an expression in simplified form to represent the area of the trapezoid ​

Answers

3xf5 = 52 is the answer to this question have a blessed day

Plz help me with this question

Answers

Answer:

C

Step-by-step explanation:

Remark

There are probably a couple of ways that you could do this. I'm going to pick the most obvious way.

Givens.

KN = 2.5

NO = 10

LM = 3

MP = x

Equation

NO/KN = PM / LM

Solution

10 / 2.5 = x / 3              Cross multiply

2.5x = 10 * 3                 Combine

2.5x = 30                      Divide by 2.5

x = 30/2.5

x = 12

That looks like it should be the answer, and it almost is, but you are asked for LP.

LP = LM + MP

LP = 3 + 12

LP = 15

The answer is 15

81 - 4x = 147 please help

Answers

Answer: X   =    -16.5 / -16 1/2 / -33/2

Step-by-step explanation:

Answer:

Step-by-step explanation:

What mathematical term describes both 5.3 and 8.2 in the expression 5.3 x − 8.2 y + 11.1 ?

Answers

Answer:

coefficient

Step-by-step explanation:

The equation  is written in point-slope form. What is the equation written in slope-intercept form?    ​

Answers

Answer:y+6 = 1/3 (x, -9)

Step-by-step explanation:The equation y+6 = 1/3 (x, -9) is written in point-slope form. What is the equation written in slope-intercept form? The point-slope form of a line that has a slope of -2 and passes through point (5, -2) is shown below. ... The equation y - 2/3 = -2 (x - 1/4) is written in point-slope form.

Solve the system of equations using the elimination method.
3x + 4y = -2
2x + 3y = -1

Answers

Answer:

(-2, 1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right  

Equality Properties

Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of Equality

Algebra I

Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

3x + 4y = -2

2x + 3y = -1

Step 2: Rewrite Systems

Find LCM of both equations.

[1st Equation] Multiply everything by 2:                                                        6x + 8y = -4[2nd Equation] Multiply everything by -3:                                                    -6x - 9y = 3

Step 3: Redefine Systems

6x + 8y = -4

-6x - 9y = 3

Step 4: Solve for y

Elimination

Combine 2 equations:                                                                                    -y = -1[Division Property of Equality] Divide -1 on both sides:                               y = 1

Step 5: Solve for x

Define original equation:                                                                               3x + 4y = -2Substitute in y:                                                                                                3x + 4(1) = -2Multiply:                                                                                                           3x + 4 = -2[Subtraction Property of Equality] Subtract 4 on both sides:                       3x = -6[Division Property of Equality] Divide 3 on both sides:                                x = -2
Other Questions
PLS helppill give brainliest Suppose you present a project and your supervisor comments that the graphics need to be a higher quality and suggests you replace a circuit board. To what circuit board is your supervisor referring?graphics cardvideo cardsound cardsystem card Read the sentence and choices, and then select the choice with the correct words to complete the sentence.-Mi hija tiene tres gatas; la madre gata y las hijas gatas. Las gatas tienen los ojos ____-Cmo es la gata madre?-Es _____ amarilla; gorda amarillos; gorda amarilla; gordo amarillos; gordo In the expression 710 , which number is the exponent?A) 10B) 70C 7D) None of the above if you could thank any black history figure,who would it be? Explain what you would say to them. If 276 g of dinitrogen tetroxide and 64.0 g of hydrazine are mixed, how many grams of nitrogen gas can you produce? 33 1/3 % of what number is21? what is 8% as a decimal or fraction in simplest form and a fraction of 100 HELP PLEASE!The initial population of Rochester is 17,500 and isprojected to grow at a rate of 4.5% perdecade.Write an expression for the projected populationof Rochester after n decades. Public corporations: a. are businesses where stock is not used as evidence of ownership. b. are businesses whose stock is bought and sold privately. c. are businesses owned by two or more people, each of whom is personally liable for the debts of the business. d. None of other choices are correct. e. are businesses whose stock is bought and sold on New York stock exchange only Solve 2(3x 1) = 20 for x which substance can be divided into to groups, simpel and complex Which statement best describes supply-side economics?A) Tax increases encourage borrowing from banks, which leads to greater purchasing power.B) Tax cuts give more money to investors and consumers, which leads to overall economic growth.C) The government establishes production goals for businesses, which leads to higher-priced goods.D) The government increases revenue to offset federal and state spending, which leads to a balanced budget. People who work in the serviceindustry and receive a salary are oftenassociated with what type of workers?A. White collar workersB. ManufacturersC. Blue collar Workers ANSWER QUICKKKHELP !!!!! i The Hiking Club is on a trip to hike up a mountain. The members increased their elevation 290 feet during their hikethis morning. Now they are at an elevation of 450 feet.a. Explain how to find their elevation before the hike.b. Han says the equation e + 290 = 450 describes the situation.What does the variable e represent?C. Han says that he can rewrite his equation ase = 450 + -290 to solve for e. Compare Han's strategy to yourstrategy for finding the beginning elevation. 00:00Which pair of numbers has a GCF of 8?8 and 2816 and 5632 and 1640 and 55 How do you get the answer hellppp fast plzzzzzz While talking to a friend, a construction worker momentarily set her cell phone down on one end of an iron rail of length 7.50 m. At that moment, a second worker dropped a wrench so that it hit the other end of the rail. The person on the phone detected two pulses of sound, one that traveled through the air and a longitudinal wave that traveled through the rail. (Assume the speed of sound in iron is 5,950 m/s and the speed of sound in air is 343 m/s).A) Which pulse reaches the cell phone first?B) Find the separation in time (in s) between the arrivals of the two pulses. what is the center of the circle? (-5,-9)(-4,-7)(-6,-5)(-5,-6)