Question: In Problem 13.7 on page 437, you used the plate gap on the bag-sealing equipment to predict the tear rating of a bag of coffee.

In Problem 13.7 on page 437, you used the plate gap on the bag-sealing equipment to predict the tear rating of a bag of coffee. The data are stored in Starbucks .

a. Construct a 95% confidence interval estimate of the mean tear rating for all bags of coffee when the plate gap is 0.

b. Construct a 95% prediction interval of the tear rating for an individual bag of coffee when the plate gap is 0.

c. Why is the interval in (a) narrower than the interval in (b)?

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a 42105 172895 b 38628 176372 c Part b provides an interval prediction for the individual resp... View full answer

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