From past history, a bookstore manager knows that 25 % of all customers entering the store make

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From past history, a bookstore manager knows that 25 % of all customers entering the store make a purchase. Suppose 200 people enter the store.

(a) What is the mean of the sample proportion of customers making a purchase?

(b) What is the variance of the sample proportion?

(d) What is the probability that the sample proportion is between .25 and .30?

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Statistics For Business And Financial Economics

ISBN: 9781461458975

3rd Edition

Authors: Cheng Few Lee , John C Lee , Alice C Lee

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Question Posted: Feb 17, 2024 11:38 PM

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From past history, a bookstore manager knows that 25 % of all customers entering the store make

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Statistics For Business And Financial Economics

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