13.1. An experiment was performed to investigate the capability of a measurement system. Ten parts were randomly selected, and two randomly selected operators measured each part three times. The tests were made in random order, and the data are shown in Table P13.1.

(a) Analyze the data from this experiment.

(b) Estimate the variance components using the ANOVA method.

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Operator 1 Measurements Operator 2 Measurements Part No. 1 2 3 1 2 3 1 50 49 50 50 48 51 2345 52 52 51 51 51 51 53 50 50 54 52 51 49 51 50 48 50 51 48 49 48 48 49 48