Data on salaries in the public school system are published annually by a teachers' association. The mean annual salary of (public) classroomteachers is $53.6 thousand. Assume a standard deviation of $7.2 thousand. Complete parts (a) through (e) below....b. Determine the sampling distribution of the sample mean for samples of size 256.The mean of the sample mean is μ = $. (Type an integer or a decimal. Do not round.)The standard deviation of the sample mean is ox = $(Type an integer or a decimal. Do not round.)c. Do you need to assume that classroom teacher salaries are normally distributed to answer parts (a) and (b)? Explain your answer. Data on salaries in the public school system are published annually by a teachers' association. The mean annual salary of (public) classroomteachers is $53.6 thousand. Assume a standard deviation of $7.2 thousand. Complete parts (a) through (e) below.a. Determine the sampling distribution of the sample mean for samples of size 64.The mean of the sample mean is μ = $. (Type an integer or a decimal. Do not round.)The standard deviation of the sample mean is o =$. (Type an integer or a decimal. Do not round.)b. Determine the sampling distribution of the sample mean for samples of size 256.

From the provided information, Mean (µ) = $53.6 thousand Standard deviation (σ) = $7.2 thousand X~N…

Answered: Data on salaries in the public school…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A population has a mean p= 75 and a standard deviation o= 6. Find the mean and standard deviation of a sampling distribution of sample means with sample size n= 36. (Simplify your answer.)
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English Philippines) e to search Given Samples A and B below, Sample A: Sample B: Sample A: - 3.2 4.6 Sample B: - a. Calculate the mean and standard deviation for each sample. 2.1 2.6 Sample B: CV- 0.00 0.00 4.5 4.5 2.0 3.2 3.6 2.8 SA 0.00 96 50 11 b. Calculate the coefficient of variation for each sample. Sample A: CV. - 0.00 % E Round to two decimal places if necessari c. Which sample is more variable? 0.00 0.00 2.6 3.1 Sample A Sample B Neither sample is more variable than the other 3.8 4.1 3.8 4.9 3.5 4.6 land I
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Use the Central Limit Theorem to find the mean and standard error of the mean of the indicated sampling distribution. The monthly rents for studio apartments in a certain city have a mean of $1,040 and a standard deviation of $200. Random samples of size 60 are drawn from the population and the mean of each sample is determined. Round the answers to the nearest hundredth. OA. $134.26, $200.00 ry OB. $134.26, $25.82 OC. $1,040.00, $3.33 ns OD. $1,040.00, $25.82 15 2 4+ to 144 A41 Insert prt so → ( P 2 @ 2 W S X 3 E D 14101 $ C 4 R F % 5 T 40 6 G V B Y 4- & H 7 U N 00 8 J 1 M 9 K ► 11 ) O O L { alt + [ ? = 1 1 backs
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According to a study conducted by a statistical organization, the proportion of people who are satisfied with the way things are going in their lives is 0.88. Suppose that a random sample of 100 people is obtained. Complete parts (a) through (e) below. (a) Suppose the random sample of 100 people is asked, "Are you satisfied with the way things are going in your life?" Is the response to this question qualitative or quantitative? Explain. A. The response is qualitative because the responses can be classified based on the characteristic of being satisfied or not. B. The response is quantitative because the number of people satisfied can be counted. C. The response is quantitative because the responses can be classified based on the characteristic of being satisfied or not. D. The response is qualitative because the number of people satisfied can be counted. (b) Explain why the sample proportion, p, is a random variable. What is the source…

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