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23 August, 11:32

he purpose of an x-bar chart is to determine whether there has been a: change in the AOQ. change in the number of defects in a sample. change in the percent defective in a sample. change in the dispersion of the process output. change in the central tendency of the process output.

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  1. 23 August, 11:35
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    E. Change in the central tendency of the process output.

    Step-by-step explanation:

    The x-bar chart is a control chart for the central tendency of the process output. Therefore it's purpose is to determine whether there has been a change in the central tendency of the process output.
  2. 23 August, 11:36
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    The change in the central tendency of the process output.

    Step-by-step explanation:

    Lets examine each of the listed options

    The change in the percent defective in a sample is associated with the change in average outgoing quality (AOQ).

    The change in the dispersion of the process output is associated with R-chart since the function of R-chart is to detect changes in the dispersion.

    The change in the number of defects in a sample is associated with C-chart since the function of a C-chart is to show the number of flaws per unit in a sample.

    The change in the central tendency of the process output is associated with X-bar chart since the function of X-bar chart is to check whether the values are within the appropriate limits (central tendency) of the process output or not.

    Therefore, the purpose of an X-bar chart is to determine whether there has been a change in the central tendency of the process output.
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