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# (In some of the exercises that follow, we must | Ch 8.2 - 11E

ISBN: 9780321923271 41

## Solution for problem 11E Chapter 8.2

Probability and Statistical Inference | 9th Edition

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Problem 11E

PROBLEM 11E

(In some of the exercises that follow, we must make assumptions such as the existence of normal distributions with equal variances.)

Let X equal the fill weight in April and Y the fill weight in June for an 8-pound box of bleach.We shall test the null hypothesisH0: μX−μY = 0 against the alternative hypothesis H1: μX − μY > 0 given that n = 90 observations of X yielded  and sy = 0.054.

(a) What is your conclusion if α = 0.05? Hint: Do the variances seem to be equal?

(b) What is the approximate p-value of this test?

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##### ISBN: 9780321923271

The full step-by-step solution to problem: 11E from chapter: 8.2 was answered by , our top Statistics solution expert on 07/05/17, 04:50AM. This textbook survival guide was created for the textbook: Probability and Statistical Inference , edition: 9. This full solution covers the following key subjects: equal, test, variances, weight, fill. This expansive textbook survival guide covers 59 chapters, and 1476 solutions. Probability and Statistical Inference was written by and is associated to the ISBN: 9780321923271. Since the solution to 11E from 8.2 chapter was answered, more than 327 students have viewed the full step-by-step answer. The answer to “(In some of the exercises that follow, we must make assumptions such as the existence of normal distributions with equal variances.)Let X equal the fill weight in April and Y the fill weight in June for an 8-pound box of bleach.We shall test the null hypothesisH0: ?X??Y = 0 against the alternative hypothesis H1: ?X ? ?Y > 0 given that n = 90 observations of X yielded and sy = 0.054.(a) What is your conclusion if ? = 0.05? Hint: Do the variances seem to be equal?(b) What is the approximate p-value of this test?” is broken down into a number of easy to follow steps, and 96 words.

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