Question: Given the following data, construct a three-sigma range control chart. Day of Sample Sample Values Saturday 22,19,20 Sunday 21,20,17 Monday 16,17,18 Tuesday 20,16,21 Wednesday 23,20,20

Given the following data, construct a three-sigma range control chart.

Day of Sample Sample Values
Saturday 22,19,20
Sunday 21,20,17
Monday 16,17,18
Tuesday 20,16,21
Wednesday 23,20,20
Thursday 19,16,21

a. If Friday's results are 15,14,21 is the process in control?

b.Construct a three-sigma means control chart and determine if the process is still in control on Friday.

Can some one show the excel work with the formulas please. I have found answers but its not in detail. trying to learn how to calculate the values.

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