Question: Data: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Data:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

10 17 29 39 55 64 28 6 5 3 39 46 35 30 6 32 33 11 20 13 9 14 12 30 56 62 73 54 10 9

Question: Is there adequate discrimination? Explain your answer: Which chart did you use and exactly how many strata are there on that chart? How many should there be?

Question: Is the process stable or unstable? If the process is unstable, what process would you follow to determine what is causing the instability?

Upper control limit for the range:

Upper control limit for the individuals:

Lower control limit for the individuals:

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