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A survey of 61,646 people included several questions about office relationships. Of the​ respondents, 25.7​% reported...

A survey of 61,646 people included several questions about office relationships. Of the​ respondents, 25.7​% reported that bosses scream at employees. Use a 0.01 significance level to test the claim that more than 1/4 of people say that bosses scream at employees. How is the conclusion affected after learning that the survey is an online survey in which Internet users chose whether to​ respond? Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.

1. The test statistic is z=_____

2. The P-value is ______

Math   Statistics-And-Probability   
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Answer #1

Let p denotes the true proportion of people who say that bosses scream at employees.

To test against

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