EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Textbook Question
Chapter 11.2, Problem 15E
Consider the following hypothesis test.
- a. What is your conclusion if n1 = 21,
- b. Repeat the test using the critical value approach.
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Suppose that we are to conduct the following hypothesis test:
H0:μ=136
H1:μ≠136
Suppose σ is not known. Taking a sample of 11 lead to a test statistic of tc=−2.228
The p-value is
For α=0.01, what would be the decision for the hypothesis test? A. Reject H1.B. Do Not Reject H1.C. Do Not Reject H0.D. Reject H0.
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.
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Ha:
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What type of test is being conducted in this problem?
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B.
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You collect N = 200 frogs from a pond and find that 120 of them are female. You wish to conduct the following hypothesis test (α = 0.05) for p (the proportion of female frogs in the pond):
H0 : p = 0.55
HA : p > 0.55
Determine which of the following statements are true. Assume the true p = 0.65.
I. The one-sided p-value is 0.1528.
II. You reject the null hypothesis H0.
III. You fail to reject H0 and make a Type II error.
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Chapter 11 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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