Question: In Problem 12 7 on page 424 you used the plate

In Problem 12.7 on page 424, 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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  • CreatedJuly 16, 2015
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