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Homework: Assignment 21: 7.1 HW Question 14, 7.1.31-T Part 1 of 2 HW Score: 52.27%, 11.5 of 22 points O Points: 0 of 1 Sa

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Homework: Assignment 21: 7.1 HW Question 14, 7.1.31-T Part 1 of 2 HW Score: 52.27%, 11.5 of 22 points O Points: 0 of 1 Sa Find the sample size needed to estimate the percentage of adults who can wiggle their ears. Use a margin of error of 5 percentage points and use a confidence level of 90% Complete parts(a) and (b) below. a. Assume that and are unknown. (Round up to the nearest integer)

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