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A production analyst takes 12 samples of jelly beans from production over a shift period. The number of minor defects in each sample is shown
A production analyst takes 12 samples of jelly beans from production over a shift period. The number of minor defects in each sample is shown below.
Sample | Number of defects |
1 | 6 |
2 | 6 |
3 | 5 |
4 | 8 |
5 | 6 |
6 | 5 |
7 | 5 |
8 | 3 |
9 | 7 |
10 | 3 |
11 | 4 |
12 | 6 |
What is the appropriate control chart for this process?
Does the process appear to be in control and why?
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