A recent study indicated that 27% of the 100 women over age 55 in the study were windows. How large a sample must you take to be 90% confident that the estimate is within 5% of the true proportion of women over age 55 who are widows?
A recent study indicated that 27% of the 100 women over age 55 in the study were windows. How large a sample must you take to be 90% confident that the estimate is within 5% of the true proportion of women over age 55 who are widows?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 25SGR
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A recent study indicated that 27% of the 100 women over age 55 in the study were windows. How large a sample must you take to be 90% confident that the estimate is within 5% of the true proportion of women over age 55 who are widows?
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