olesale book buyers. The publisher randomly samples the faculty from two universities, A and B. ormation provided by salespeople suggests that the faculty at University A had copies of the publisher's oks that had been shipped, whereas the faculty at University B şeldomly had them. Let be the portion of faculty at University A who sell this publisher's books and be the proportion of faculty at iversity B who sell this publisher's books. The samples provide these data: University A University B Sample size Who Sold 150 120 75 78 Publisher's Books the 0.05 significance level, is this publisher reasonably justified in saying there is a higher proportion faculty at University B who sell this publisher's complimentary books than at University A? ARREND а). State the null and alternative hypotheses.

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