Question: In Problem 12.7 on page 424 concerning the bag sealing equipment at Starbucks, you used the plate gap to predict the tear rating. a. Is

In Problem 12.7 on page 424 concerning the bag sealing equipment at Starbucks, you used the plate gap to predict the tear rating.
a. Is it necessary to compute the Durbin Watson statistic in this case? Explain.
b. Under what circumstances is it necessary to compute the Durbin Watson statistic before proceeding with the leastsquares method of regression analysis?

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