Example 6 : The following are the sample means and ranges for 10 samples each of size 5. Construct a X - chart and a R- chart and determine whether the process is in control. Sample No. 1 2 3 4 7 8 9. 10 Mean (X) 20 34 45 39 26 29 13 34 37 23 Range 23 39 15 05 20 17 21 11 40 10 6

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Example 6 : The following are the sample means and ranges for 10 samples each
of size 5. Construct a X - chart and a R- chart and determine whether the process is in
control.
Sample No.
Mean (X)
1
2
3
4
6 | 7
20 34 45 39 26 29 13 34 37 23
5
8.
9 10
Range
23 | 39 | 15 | 05 | 20 | 17 | 21 | 11 | 40 | 10
Transcribed Image Text:Example 6 : The following are the sample means and ranges for 10 samples each of size 5. Construct a X - chart and a R- chart and determine whether the process is in control. Sample No. Mean (X) 1 2 3 4 6 | 7 20 34 45 39 26 29 13 34 37 23 5 8. 9 10 Range 23 | 39 | 15 | 05 | 20 | 17 | 21 | 11 | 40 | 10
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