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X Bar Chart Notes: Definitions & Explanations PDF | Download eBooks

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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:

  1. X bar chart aids us in monitoring the process mean or average.

    Managing Quality: Integrating the Supply Chain by S. Thomas Foster



  2. 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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