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.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.
Related questions
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.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL