Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134111056
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 3, Problem 8P

(a)

Summary Introduction

Interpretation: Estimate of the process average.

Concept introduction:This can explore where the production data express a usual distribution the procedure can be defined by the process mean.

(b)

Summary Introduction

Interpretation: Estimate of the average range.

(c)

Summary Introduction

Interpretation: Construct an R-chart and X¯ chart.

Concept introduction:X bar charts are a type of statistical process control chart which measures a central a shift in the central tendency of the process. In other words, X- bar charts monitor the mean or average of product characteristics. The central line of the X-bar chart is the average of the samples and limits.

R-chart or range-chart is also a type of statistical process control chart, but it monitors the range of dispersion or variability of process. The central line of the r- chart is the average range and limits

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