hat percentage of your campus student body is female? Let p be the proportion of women students on your campus. (a) If no preliminary study is made to estimate p, how large a sample is needed to be 80% sure that a point estimate p̂ will be within a distance of 0.042 from p?   (b) A report indicates that approximately 55% of college students are females. Answer part (a) using this estimate for p.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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hat percentage of your campus student body is female? Let p be the proportion of women students on your campus.

(a) If no preliminary study is made to estimate p, how large a sample is needed to be 80% sure that a point estimate p̂ will be within a distance of 0.042 from p?
 

(b) A report indicates that approximately 55% of college students are females. Answer part (a) using this estimate for p.
 
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