A humane society claims that less than 39% of U.S. households own a dog. In a random sample of 402 U.S. households, 155 say they own a dog. At α=0.01, is there enough evidence to support the society's claim? (a) Write the claim mathematically and identify H0 and Ha. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim.
A humane society claims that less than 39% of U.S. households own a dog. In a random sample of 402 U.S. households, 155 say they own a dog. At α=0.01, is there enough evidence to support the society's claim? (a) Write the claim mathematically and identify H0 and Ha. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A humane society claims that less than 39% of U.S. households own a dog. In a random sample of 402 U.S. households, 155
say they own a dog. At α=0.01, is there enough evidence to support the society's claim?
say they own a dog. At α=0.01, is there enough evidence to support the society's claim?
(a) Write the claim mathematically and identify
H0 and Ha.
(b) Find the critical value(s) and identify the rejection region(s).
(c) Find the standardized test statistic.
(d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim.
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