Question: 17.7 Consider the situation of Example 17.2. The following data are taken on additional samples of size 5. Plot the X - and S-values on

17.7 Consider the situation of Example 17.2. The following data are taken on additional samples of size 5.

Plot the ¯X - and S-values on the ¯X - and S-charts that were produced with the data in the preliminary sample.

Does the process appear to be in control? Explain why or why not.

Sample X¯ Si 1 62.280 0.062 2 62.319 0.049 3 62.297 0.077 4 62.318 0.042 5 62.315 0.038 6 62.389 0.052 7 62.401 0.059 8 62.315 0.042 9 62.298 0.036 10 62.337 0.068

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