Mathematics, 09.04.2021 09:20, lilybear1700

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The brand manager for a brand of toothpaste must plan a campaign designed 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 80% confident that his estimate is within eight percentage points of the true population percentago? Complete parts (a) through (c) below.
a) Assume that nothing is known about the percentage of adults who have heard of the brand.
no
(Round up to the nearest Integer.)

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The brand manager for a brand of toothpaste must plan a campai...