Question: A design engineer wants to construct a sample mean chart for controlling the diameter for a component used in surgeries. The following table contains measurements

A design engineer wants to construct a sample

A design engineer wants to construct a sample mean chart for controlling the diameter for a component used in surgeries. The following table contains measurements (in millimeters) of the diameter for a component. Four samples of five units each were taken at random two-hour intervals. What are the x-bar chart upper and lower control limits? 9.67 and 7.93 9.945 and 7.775 10.01 and 7.15 9.72 and 7.98 9.872 and 7.828

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