a.) According to a recent​ report, 46% of college student internships are unpaid. A recent survey...

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a.) According to a recent​ report, 46% of college studentinternships are unpaid. A recent survey of 120 college interns at alocal university found that 57 had unpaid internships. 1.)Use the​five-step p-value approach to hypothesis testing and a 0.05 levelof significance to determine whether the proportion of collegeinterns that had unpaid internships is different from 0.46. 2.)Assume that the study found that 70 of the 120 college interns hadunpaid internships and repeat​ (1). Are the conclusions the​ same?Let π be the population proportion. Determine the null​ hypothesis,H0​, and the alternative​ hypothesis, H1. ​(Type integers ordecimals. Do not​ round.)

b.) ​Recently, a large academic medical center determined that 9of 23 employees in a particular position were male​, whereas 55​%of the employees for this position in the general workforce weremale. At the 0.05 level of​ significance, is there evidence thatthe proportion of males in this position at this medical center isdifferent from what would be expected in the general​ workforce?What are the correct hypotheses to test to determine if theproportion is​ different?

c.) A consulting group recently conducted a global survey ofproduct teams with the goal of better understanding the dynamics ofproduct team performance and uncovering the practices that makethese teams successful. One of the survey findings was that 36​% oforganizations have a coherent business strategy that they stick toand effectively communicate. Suppose another study is conducted tocheck the validity of this​result, with the goal of proving thatthe percentage is less than 36​%. State the null and researchhypotheses. Identify the null and alternative hypotheses.

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a1 H0 P 046H1 P 046 57120 0475The test statistic z PsqrtP1 P 0475 046sqrt046 1 046120 033Pvalue 2 PZ 033 2 1 PZ 033 2 1 06293 2 03707 07414Since the Pvalue is greater than the significance level07414 005 so we should not reject the null hypothesisSo at 005    See Answer
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