7.28 Consider the test Ho: μ = 70 versus Ha: > 70 using alarge sample of size n = 400. Assume o = 20.a. Describe the sampling distribution of x.b. Find the value of the test statistic if x = 72.5.c. Refer to part b. Find the p-value of the test.d. Find the rejection region of the test for a = .01.e. Refer to parts c and d. Use the p-value approach tomake the appropriate conclusion.f. Repeat part e, but use the rejection regionapproach.g. Do the conclusions, parts e and f, agree?

As per the Bartleby guildlines we have to find first three subparts and rest can be reposted.... H0…

Answered: 7.28 Consider the test Ho: μ = 70…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

3. Normal Distribution and Z - Scores Assume a normal distribution for a population of scores for a standardized exam. The average exam score is 70, and the standard deviation is 5. Jeff's exam score is 63. a) What percentage of the population has an exam score greater than Jeff's? b) What percentage of the population has an exam score greater than Jeff's but less than the score of 74? c) If 10,000 people were given the exam, how many of them have an exam score less than Jeff's?
8. For a normal distribution with u = 500 and o = 100, find the following values: a. What X value separates the highest 10% of the distribution from the rest of the scores? b. What X values form the boundaries for the middle 60% of the distribution? %3D c. What is the probability of randomly selecting a score greater than X = 475?
Assume we know the following for a paired-samples t test: N = 32, Mdifference = 1.75, s = 4
12.
O a. the OLS estimate of r is biased due to sample selection. O b.the OLS estimate of r is unbiased. Oc the error u is homoskedastic. O d. the OLS estimator is BLUE.
4. For the following information, determine whether a normal sampling distribution can be used, where p is the population proportion, α is the level of significance, p is the sample proportion, and n is the sample size. If it can be used, test the claim. Claim: p>0.44; α=0.08. Sample statistics: p=0.52, n=350 Question content area bottom Part 1 Let q=1−p and let q=1−p. A normal sampling distribution ▼ can cannot be used here, since ▼ n ModifyingAbove p with caretnp npnp ▼ less than< greater than or equals≥ 5 and ▼ nqnq n ModifyingAbove q with caretnq ▼ less than< greater than or equals≥ 5.
A population has a normal distribution. A sample size of n is selected from this popuiation. Descriee theshape of the sampling distribution Of the sampre mean for eaen of the foliaung cars. a.73D23 b.n=450
A random sample of n = 78 measurements is drawn from a binomial population with probability of success 0.2. Complete parts a through d below. a. Give the mean and standard deviation of the sampling distribution of the sample proportion, p. The mean of the sampling distribution of p is The standard deviation of the sampling distribution of p is (Round to four decimal places as needed.) b. Describe the shape of the sampling distribution of p. OA. The shape of the sampling distribution of p is approximately normal because the sample size is large. OB. The shape of the sampling distribution of p is approximately uniform because the sample size is large. OC. The shape of the sampling distribution of p is approximately normal because the sample size is small. OD. The shape of the sampling distribution of p is approximately uniform because the sample size is small. c. Calculate the standard normal'z-score corresponding to a value of p = 0.32. The standard normal z-score corresponding to a…
13.
Solve the problem. Find the standardized test statistic t for a sample with n = 15, x = 8.7, s = 0.8, and a = 0.05 if Ho: Hs 8.4. Round your answer to three decimal places. a. 1.452 b. 1.631 c. 1.728 d. 1.312
4. For the following information, determine whether a normal sampling distribution can be used, where p is the population proportion, α is the level of significance, p is the sample proportion, and n is the sample size. If it can be used, test the claim. Claim: p>0.29; α=0.06. Sample statistics: p=0.36, n=425 Question content area bottom Part 1 Let q=1−p and let q=1−p. A normal sampling distribution ▼ cannot can be used here, since ▼ n ModifyingAbove p with caretnp npnp ▼ less than< greater than or equals≥ 5 and ▼ n ModifyingAbove q with caretnq nqnq ▼ less than< greater than or equals≥ 5.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

7.28 Consider the test Ho: μ = 70 versus Ha: >70 using a large sample of size n = 400. Assume o = 20. a. Describe the sampling distribution of x. b. Find the value of the test statistic if x = 72.5. c. Refer to part b. Find the p-value of the test.