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Find the sample size needed to estimate the percentage of adults who can wiggle their ears. Use a margin of error 0M percentage points and
Find the sample size needed to estimate the percentage of adults who can wiggle their ears. Use a margin of error 0M percentage points and use a condence level of 90%. Complete parts (a) and [h] below. E) a. Assume that a and a are unknown. n=D (Round up to the nearest integer.) b. Assume That 22% of adults can wiggle their ears. n=E (Round up to the nearest integer.)
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