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The brand manager for a brand of toothpaste must plan a campaign designed to increase...

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The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition He wants to first determine the percentage of adults who have heard of the brand How many adults must he survey in order to be 90 confident that his estimate is within six percentage points of the true population percentage Complete parts a through c below a Assume that nothing is known about the percentage of adults who have heard of the brand n 188 Round up to the nearest integer b Assume that a recent survey suggests that about 86 of adults have heard of the brand n Round up to the nearest integer

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