Find the sample size needed to estimate the percentage of adults who can wiggle their ears. Use a margin of error of 4 percentage points and use a confidence level of 99%. Complete parts (a) and (b) below. a. Assume that p and q are unknown. n = 1037 (Round up to the nearest integer.) b. Assume that 22% of adults can wiggle their ears. n= (Round up to the nearest integer.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 3CYU
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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 of 4
percentage points and use a confidence level of 99%. Complete parts (a) and (b) below.
a. Assume that p and q are unknown.
n = 1037
(Round up to the nearest integer.)
b. Assume that 22% of adults can wiggle their ears.
n=
(Round up to the nearest integer.)
Transcribed Image Text:Find the sample size needed to estimate the percentage of adults who can wiggle their ears. Use a margin of error of 4 percentage points and use a confidence level of 99%. Complete parts (a) and (b) below. a. Assume that p and q are unknown. n = 1037 (Round up to the nearest integer.) b. Assume that 22% of adults can wiggle their ears. n= (Round up to the nearest integer.)
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