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An online bookstore predicts that the percentage of college students buying anthropology books online is not...

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Basic Math

An online bookstore predicts that the percentage of collegestudents buying anthropology books online is not equal to 45 %, onaverage. Several of the bookstore’s client universities would liketo know if this is likely, so the online bookstore decides to do ahypothesis test at a 10% significance level. Data is collected from11 universities providing the following information: H0: ?=45; Ha:??45 x¯=51 ?=4 ?=0.1 (significance level) The test statistic isz0=x¯??0?n?=51?45411?=4.97 The critical values are ?z0.05=?1.64 andz0.05=1.64. Conclude whether to reject or not reject H0, andinterpret the results. Based on this context and the null andalternative hypothesis, what type of hypothesis test should beused? Use the curve below to show your answer. Select theappropriate test by dragging the blue point to a right-, left- ortwo-tailed diagram. The shaded area represents the rejectionregion. Then, set the critical value(s) on the x-axis by moving thepurple slider on the right. Provide your answer below:

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