youwant to be 95% confident of estimating thepopulation proportion to within a sampling error of ±0.05and there is historical evidence that the population is0.47, what sample size is needed?approximately

Answered: want to be 95% confident of esti you…

want to be 95% confident of esti you population proportion to within a sampling and there is historical evidence that the pos approximately 0.47, what sample size i

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

you
want to be 95% confident of estimating the
population proportion to within a sampling error of ±0.05
and there is historical evidence that the population is
0.47, what sample size is needed?
approximately

Expert Solution

Step 1

Given that

Margin of error =E =0.05

Population proportion p=0.47

Step by step

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