In a study of perception, 138 men are tested and 16 are found to have red/green color blindness. (a) Find a 90% confidence interval for the true proportion of men from the sampled population that have this type of color blindness. (b) Using the results from the above mentioned survey, how many men should be sampled to estimate the true proportion of men with this type of color blindness to within 4% with 99% confidence? (c) If no previous estimate of the sample proportion is available, how large of a sample should be used in (b)?
In a study of perception, 138 men are tested and 16 are found to have red/green color blindness. (a) Find a 90% confidence interval for the true proportion of men from the sampled population that have this type of color blindness. (b) Using the results from the above mentioned survey, how many men should be sampled to estimate the true proportion of men with this type of color blindness to within 4% with 99% confidence? (c) If no previous estimate of the sample proportion is available, how large of a sample should be used in (b)?
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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