Question: --------------------------------------------- Problem 44E: Chapter: CH6 Problem: 44E A retail outlet wanted to know whether its weekly advertisement in the daily newspaper works. To acquire this

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Problem 44E: Chapter: CH6 Problem: 44E A retail outlet wanted to know whether its weekly advertisement in the daily newspaper works. To acquire this critical information, the store manager surveyed the people who entered the store and determined whether each individual saw the ad and whether a purchase was made. From the information developed, the manager produced the following table of joint probabilities. Are the ads effective? Explain. PurchaseNo Purchase See ad .18 .42 Do not see ad .12 28

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