Homework Help is Here – Start Your Trial Now!
Math
Statistics
A school district reports that out of the 4586 teachers who have retired, the mean number of years those teachers have served is 28.7 with a standard deviation of 4.9 years. Note that the distribution of years of service (the shape of the distribution of the parent population) is not known. If simple random samples of 70 retired teachers are selected, what should be the shape of distribution of sample means? Select one of the choices below. O Approximately normal because the population standard deviation is known and the distribution of sample means with this large a sample size should be approximately normal regardless of the distribution of salaries. O Unknown because the distribution of years of service is unknown. O Uniform because the sample means should be distributed evenly. O Skewed right because teachers tend to work for a long time. Skewed left because teachers tend to retire early.

A school district reports that out of the 4586 teachers who have retired, the mean number of years those teachers have served is 28.7 with a standard deviation of 4.9 years. Note that the distribution of years of service (the shape of the distribution of the parent population) is not known. If simple random samples of 70 retired teachers are selected, what should be the shape of distribution of sample means? Select one of the choices below. O Approximately normal because the population standard deviation is known and the distribution of sample means with this large a sample size should be approximately normal regardless of the distribution of salaries. O Unknown because the distribution of years of service is unknown. O Uniform because the sample means should be distributed evenly. O Skewed right because teachers tend to work for a long time. Skewed left because teachers tend to retire early.

MATLAB: An Introduction with Applications
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
icon
Related questions
Question
Would it be skewed right since all the data would lie on the left side
A school district reports that out of the 4586 teachers who have retired, the mean number of years those teachers have served is 28.7 with a standard deviation of 4.9 years. Note that the distribution of years of service (the shape of the distribution of the parent population) is not known. If simple random samples of 70 retired teachers are selected, what should be the shape of distribution of sample means? Select one of the choices below. O Approximately normal because the population standard deviation is known and the distribution of sample means with this large a sample size should be approximately normal regardless of the distribution of salaries. O Unknown because the distribution of years of service is unknown. O Uniform because the sample means should be distributed evenly. O Skewed right because teachers tend to work for a long time. O Skewed left because teachers tend to retire early.
Transcribed Image Text:A school district reports that out of the 4586 teachers who have retired, the mean number of years those teachers have served is 28.7 with a standard deviation of 4.9 years. Note that the distribution of years of service (the shape of the distribution of the parent population) is not known. If simple random samples of 70 retired teachers are selected, what should be the shape of distribution of sample means? Select one of the choices below. O Approximately normal because the population standard deviation is known and the distribution of sample means with this large a sample size should be approximately normal regardless of the distribution of salaries. O Unknown because the distribution of years of service is unknown. O Uniform because the sample means should be distributed evenly. O Skewed right because teachers tend to work for a long time. O Skewed left because teachers tend to retire early.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
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