Loose-leaf for Operations Management (The Mcgraw-hill Series in Operations and Decision Sciences)
Loose-leaf for Operations Management (The Mcgraw-hill Series in Operations and Decision Sciences)
12th Edition
ISBN: 9781259580093
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Chapter 10, Problem 8DRQ
Summary Introduction

To determine: The reason for using median-run test and up/down test on the same data.

Run test: It is a statistical tool that is used to examine a string of data which occurs randomly in a specific distribution. Usually, run test is used to examine identical events that are separated by dissimilar events.

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Distinguish between a sampling error and a nonsampling error.How can each be reduced?
Why is it usually desirable to use both a median run test and an up/down run test on the samedata?
Auto pistons at Wemming Chung's plant in Shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. From sample sizes of 5 pistons produced each day, the mean and the range of this diameter have been as follows: Day Mean (mm) Range R (mm) 158 4.3 151.2 4.4 155.7 4.2 153.5 4.8 156.6 4.5 What is the UCL using 3-sigma?(round your response to two decimal places). 1. 2. 4.
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