Homework Help is Here – Start Your Trial Now!
Business
Operations Management
Eight instances of a worker doing a task were observed as follows:    How many observations would be needed to be 99.74 percent confident that the maximum error is 5 percent of the observed time? Assume that the standard deviation of the task time is two seconds.

Eight instances of a worker doing a task were observed as follows:    How many observations would be needed to be 99.74 percent confident that the maximum error is 5 percent of the observed time? Assume that the standard deviation of the task time is two seconds.

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
See similar textbooks
icon
Related questions
Question

Eight instances of a worker doing a task were observed as follows:

  

How many observations would be needed to be 99.74 percent confident that the maximum error is 5 percent of the observed time? Assume that the standard deviation of the task time is two seconds.

Observation Time (seconds) 3 4 13 14 8 17 18 15 15 16 12 N 00
Transcribed Image Text:Observation Time (seconds) 3 4 13 14 8 17 18 15 15 16 12 N 00
Expert Solution
Step 1

Given-

 

Confidence level = 99.74%Maximum error = 5%Standard deviation of the task time = 2 seconds

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
Recommended textbooks for you
Practical Management Science
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Operations Management
Operations Management
Operations Management
ISBN:
9781259667473
Author:
William J Stevenson
Publisher:
McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi…
Operations and Supply Chain Management (Mcgraw-hi…
Operations Management
ISBN:
9781259666100
Author:
F. Robert Jacobs, Richard B Chase
Publisher:
McGraw-Hill Education
Business in Action
Business in Action
Operations Management
ISBN:
9780135198100
Author:
BOVEE
Publisher:
PEARSON CO
Purchasing and Supply Chain Management
Purchasing and Supply Chain Management
Operations Management
ISBN:
9781285869681
Author:
Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:
Cengage Learning
Production and Operations Analysis, Seventh Editi…
Production and Operations Analysis, Seventh Editi…
Operations Management
ISBN:
9781478623069
Author:
Steven Nahmias, Tava Lennon Olsen
Publisher:
Waveland Press, Inc.
SEE MORE TEXTBOOKS