Homework Help is Here – Start Your Trial Now!
Math
Statistics
You may need to use the appropriate appendix table or technology to answer this question. Sheer industries is considering a new computer-assisted program to train maintenance employees to do machine repairs. In order to fully evaluate the program, the director of manufacturing requested an estimate of the population mean time required for maintenance employees to complete the computer assisted training. Use 7.94 days as a planning value for the population standard deviation. (Round your answers up to the nearest whole number.) (a) Assuming 95% confidence, what sample size would be required to obtain a margin of error of 0.5 days? (b) If the precision statement was made with 90% confidence, what sample size would be required to obtain. margin of error of 2 days?

You may need to use the appropriate appendix table or technology to answer this question. Sheer industries is considering a new computer-assisted program to train maintenance employees to do machine repairs. In order to fully evaluate the program, the director of manufacturing requested an estimate of the population mean time required for maintenance employees to complete the computer assisted training. Use 7.94 days as a planning value for the population standard deviation. (Round your answers up to the nearest whole number.) (a) Assuming 95% confidence, what sample size would be required to obtain a margin of error of 0.5 days? (b) If the precision statement was made with 90% confidence, what sample size would be required to obtain. margin of error of 2 days?

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
## Sample Size Determination for Maintenance Training Program Sheer Industries is considering a new computer-assisted program to train maintenance employees to do machine repairs. In order to fully evaluate the program, the director of manufacturing requested an estimate of the population mean time required for maintenance employees to complete the computer-assisted training. Use **7.94 days** as a planning value for the population standard deviation. (Round your answers up to the nearest whole number.) ### Questions: 1. **Assuming 95% confidence**, what sample size would be required to obtain a margin of error of **0.5 days**? 2. **If the precision statement was made with 90% confidence**, what sample size would be required to obtain a margin of error of **2 days**? #### Need Help? - **Read It** - **Watch It** There are no graphs or diagrams present in this image. The content focuses on statistical sample size determination for different confidence levels and margins of error. The tools mentioned ('Appendix Table' or 'technology') suggest that readers may need to use additional resources for calculation aid.
Transcribed Image Text:## Sample Size Determination for Maintenance Training Program Sheer Industries is considering a new computer-assisted program to train maintenance employees to do machine repairs. In order to fully evaluate the program, the director of manufacturing requested an estimate of the population mean time required for maintenance employees to complete the computer-assisted training. Use **7.94 days** as a planning value for the population standard deviation. (Round your answers up to the nearest whole number.) ### Questions: 1. **Assuming 95% confidence**, what sample size would be required to obtain a margin of error of **0.5 days**? 2. **If the precision statement was made with 90% confidence**, what sample size would be required to obtain a margin of error of **2 days**? #### Need Help? - **Read It** - **Watch It** There are no graphs or diagrams present in this image. The content focuses on statistical sample size determination for different confidence levels and margins of error. The tools mentioned ('Appendix Table' or 'technology') suggest that readers may need to use additional resources for calculation aid.
Expert Solution
steps

Step by step

Solved in 3 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE 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