Operations Management: Processes And Supply Chains (12th Global Edition) - Does Not Include Mylab Operations Management
Operations Management: Processes And Supply Chains (12th Global Edition) - Does Not Include Mylab Operations Management
12th Edition
ISBN: 9780134890357
Author: Lee J. Krajewski, Manoj K. Malhotra
Publisher: Pearson Global Edition
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Chapter 3, Problem 6P

(a)

Summary Introduction

Interpretation: a control chart for evaluating mean and range is to be drawn.

Concept Introduction:

A control chart is used to find out the defects in the constant sample size. Control chart is generally used when it become difficult to detect the actual number of defects.

(b)

Summary Introduction

Interpretation: the value of the sample size through 16 to 25 are to be plotted on the basis of solution emerged in part a and deciding whether the process is in control.

Concept Introduction:

A control chart is used to find out the defects in the constant sample size. Control chart is generally used when it become difficult to detect the actual number of defects.

(c)

Summary Introduction

Interpretation: If the process in part b, is not in control, whether it will be included in the mean as increase in the variability or both is to be determined.

Concept Introduction:

From the above calculations it has been concluded that the means of the process is not in control.

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