A nutritionist wants to estimate the difference between the percentage of men and women who have high cholesterol. What sample size should be obtained if she wishes the estimate to be within 2 percentage points with 90% confidence, assuming the following? (a) She uses the estimates of 18.8% male and 20.5% female from the National Center for Health Statistics. (b) She does not use any prior estimates.
A nutritionist wants to estimate the difference between the percentage of men and women who have high cholesterol. What sample size should be obtained if she wishes the estimate to be within 2 percentage points with 90% confidence, assuming the following? (a) She uses the estimates of 18.8% male and 20.5% female from the National Center for Health Statistics. (b) She does not use any prior estimates.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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A nutritionist wants to estimate the difference between the percentage of men and women who have high cholesterol. What sample size should be obtained if she wishes the estimate to be within 2 percentage points with 90% confidence, assuming the following?
(a) She uses the estimates of 18.8% male and 20.5% female from the National Center for Health Statistics.
(b) She does not use any prior estimates.
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