A pollster wants to estimate the difference between the proportions of men and women who favor a particular national candidate, using a 90% confidence interval of width 0.08. Suppose the pollster has no prior information about the proportions. If equal numbers of men and women are to be polled, how large should the sample sizes be? The sample sizes should be n, =n2 =: (Round up to the nearest integer.)
A pollster wants to estimate the difference between the proportions of men and women who favor a particular national candidate, using a 90% confidence interval of width 0.08. Suppose the pollster has no prior information about the proportions. If equal numbers of men and women are to be polled, how large should the sample sizes be? The sample sizes should be n, =n2 =: (Round up to the nearest integer.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Transcribed Image Text:Apollster wants to estimate the difference between the proportions of men and women who favor a particular national candidate, using a 90% confidence interval of
width 0.08. Suppose the pollster has no prior information about the proportions. If equal numbers of men and women are to be polled, how large should the sample
sizes be?
The sample sizes should be n, =n, =
(Round up to the nearest integer.)
dn
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