a) Obtain the mean and standard deviation for WKWEHR_C for the overall full sample (our population of interest). How close is the mean work hours to the average mean work hours based on your 8 samples? How close is the SD to the calculated mean of the SD_ WKWEHR_C of your 8 samples? Are answers in a & b what you expected? Does this surprise you in any way? b) If you continued to take 5% samples from this same “population” another 50 times and then recalculated the overall mean work hours and the average standard deviation of work hours of the samples, do you think these numbers would stay the same as calculated above or change? If you think they would change, explain in what way.
a) Obtain the mean and standard deviation for WKWEHR_C for the overall full sample (our population of interest). How close is the mean work hours to the average mean work hours based on your 8 samples? How close is the SD to the calculated mean of the SD_ WKWEHR_C of your 8 samples? Are answers in a & b what you expected? Does this surprise you in any way? b) If you continued to take 5% samples from this same “population” another 50 times and then recalculated the overall mean work hours and the average standard deviation of work hours of the samples, do you think these numbers would stay the same as calculated above or change? If you think they would change, explain in what way.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 4SGR
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Question
a) Obtain the
- How close is the mean work hours to the average mean work hours based on your 8 samples? How close is the SD to the calculated mean of the SD_ WKWEHR_C of your 8 samples?
- Are answers in a & b what you expected? Does this surprise you in any way?
b) If you continued to take 5% samples from this same “population” another 50 times and then recalculated the overall mean work hours and the average standard deviation of work hours of the samples, do you think these numbers would stay the same as calculated above or change? If you think they would change, explain in what way.
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