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Managing and Improving Quality
book

Managing and Improving Quality

by Dr. Amar Sahay
December 2015
Intermediate to advanced content levelIntermediate to advanced
290 pages
7h 34m
English
Business Expert Press
Content preview from Managing and Improving Quality

CHAPTER 7

Control Charts for Variables

Introduction

In this chapter, we discuss a very widely used control chart—the control chart for monitoring the mean and variation of a variable that is to be controlled. This chart is used to study the variations that occur in the mean or central tendency and dispersion in a process data. The control chart for monitoring the mean is referred to as the (x-bar) chart and is used to monitor the variation in the process mean by plotting the average value of samples of certain size. Another chart that is used to monitor and study the variation in the process is known as the R chart or the control chart for range. In practice, both the and R chart are used in conjunction and are the most widely used charts ...

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Publisher Resources

ISBN: 9781631573422