In Exercises 29 and 30, construct the confidence interval for s2 1 s2 2. Assume the
Chapter 10, Problem 30(choose chapter or problem)
In Exercises 29 and 30, construct the confidence interval for s2 1 s2 2. Assume the samples are random and independent, and the populations are normally distributed.Carbohydrate Contents In a recent study of the carbohydrate contentsof grilled chicken sandwiches served at fast food restaurants, a nutritionistfound that random samples of sandwiches from Restaurant A and fromRestaurant B had the sample statistics shown in the table. Construct a95% confidence interval for s21 s22, where s21 and s22 are the variances ofthe carbohydrate contents of grilled chicken sandwiches from Restaurant Aand Restaurant B, respectively. (Adapted from Burger King Brands, Inc. andMcDonalds Corporation.)
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