Question: For each of the following write out the null and

For each of the following, write out the null and alternative hypotheses, being sure to state whether the alternative is one-sided or two-sided.
a) A company reports that last year 40% of their reports in accounting were on time. From a random sample this year, they want to know if that proportion has changed.
b) Last year, 42% of the employees enrolled in at least one wellness class at the company’s site. Using a survey, they want to know if a greater percentage is planning to take a wellness class this year.
c) A political candidate wants to know from recent polls if she’s going to garner a majority of votes in next week’s election.

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  • CreatedMay 15, 2015
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