Refer to Exercise 17. It turns out that the measurements

Chapter 9, Problem 18E

(choose chapter or problem)

Refer to Exercise 17. It turns out that the measurements of operator 2 were taken in the morning, shortly after the balance had been powered up. A new policy was instituted to leave the balance powered up continuously. The three operators then made two weighings of three different wafers. The results are presented in the following table.

Construct an ANOVA table. You may give ranges for the P-values. Compare the ANOVA table in part (a) with the ANOVA table in part (a) of Exercise 17. Would you recommend leaving the balance powered up continuously? Explain your reasoning.

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