Operations Management
Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Chapter 7, Problem 11P
Summary Introduction

To determine: The number of observations needed.

Introduction: The amount of the dependency on human effort by an organization in terms of achieving its goals is given by the work design. It is directly linked to the productivity of an organization where good work design helps in achieving high productivity.

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How many observations should a time study analyst plan for in an operation that has a standard deviation of .4 minutes per piece if the goal is to estimate the mean time per piece to within .1 minute with a confidence of 95.5 percent?
oPERATION MANAGEMENT
How many observations should a time study analyst plan for in an operation that has a standard deviation of 1.1 minutes per piece? The goal is to estimate the mean time per piece to within 0.4 minutes, with a confidence of 95.5 percent. (Do not round intermediate calculations. Round up your final answer to the next whole number.).

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Operations Management

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