Find the required sample size needed to make a 99% confidence interval for the population proportion if the margin of error can be no more than 5%. Assume you may use pˆ=p^= .40 Assume you have no information about   pˆp^

Find the required sample size needed to make a 99% confidence interval for the population proportion if the margin of error can be no more than 5%. Assume you may use pˆ=p^= .40 Assume you have no information about   pˆp^

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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12) Find the required sample size needed to make a 99% confidence interval for the population proportion if the margin of error can be no more than 5%.

Assume you may use

pˆ=p^=

Assume you have no information about

pˆp^

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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