Question: urgent please help The upper specification limit is 55 mins and lower specification limit is 25 mins. Following is six samples Subgroup Avegerage (min) Max

urgent please help

The upper specification limit is 55 mins and lower specification limit is 25 mins. Following is six samples

Subgroup

Avegerage (min)

Max (min)

Min (min)

1

36

42

30

2

35

40

26

3

31

38

19

4

35

43

28

5

32

44

22

6

28

38

20

What are the values of the overall mean (x bar) and range (r bar) and standard deviation for this data set? Assume d2 = 1.693

Base on values derived, obtain the values for Cp, Cpu, Cpl and CpK

Outline whether this process is in control

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