Question: 7 . 6 Given the following data, construct a three - sigma range . control chart. a . If Friday's results are 1 5 ,

7.6 Given the following data, construct a three-sigma range .
control chart.
a. If Friday's results are 15,14, and 21, is the process in
control?
b. Construct a three-sigma means control chart and deter-
mine if the process is still in control on Friday.
Do on an excel sheet
7.6 Given the following data, construct a three-sigma range . control

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