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A humane society claims that less than 38​% of U.S. households own a dog. In a...

A humane society claims that less than 38​% of U.S. households own a dog. In a random sample of 394 U.S.​ households, 156 say they own a dog. At alphaequals0.10​, is there enough evidence to support the​ society's claim? Complete parts​ (a) through​ (e) below using the given information. When you know the number of successes​ x, the sample size​ n, and the population proportion​ p, it can be easier to use the formula shown below to find the standardized test statistic when using a​ z-test for a population proportion p. z equals

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