X Bar Chart Notes: Definitions & Explanations PDF | Download eBooks
Study X Bar Chart lecture notes PDF with total quality management definitions and explanation to study “What is X Bar Chart?”. Study x bar chart explanation with TQM terms to review total quality management course for online MBA programs.
X Bar Chart Definitions:
X bar chart aids us in monitoring the process mean or average.
Managing Quality: Integrating the Supply Chain by S. Thomas Foster
Control of the process average or mean quality level is usually done with X bar chart.
Introduction to Statistical Quality Control by Douglas C. Montgomery
X Bar Chart Notes:
X bar chart is a type of variable control chart which is used when the product characteristic is variable i.e. height, weight, diameter etc. For X bar chart, samples are collected for a specific process characteristic. The samples are then arranged into rational subgroups. The average of each subgroup is calculated (i.e. the sum of all the observations in a sub group divided by the subgroup size). The values of these averages are plotted as an X bar chart. The control limits for the X bar chart are established using the already defined formula. The center line of the X bar chart is calculated as the sum of subgroup averages divided by the total number of subgroups.
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