3. You wish to estimate, with a 99% confidence, the population proportion (p) of U.S adults who made one or more emergency room visits per year. Your estimate must be accurate within 7.5 % of the population proportion. preliminary estimate is available. Find the minimum sample size needed. Find the minimum sample size needed, using a prior estimate that found that 25.1 % of U.S adults made at least one emergency room visit in the past year.

3. You wish to estimate, with a 99% confidence, the population proportion (p) of U.S adults who made one or more emergency room visits per year. Your estimate must be accurate within 7.5 % of the population proportion. preliminary estimate is available. Find the minimum sample size needed. Find the minimum sample size needed, using a prior estimate that found that 25.1 % of U.S adults made at least one emergency room visit in the past year.

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Find the minimum sample size needed, using a prior estimate that found that 25.1 % of U.S adults made at least one emergency room visit in the past year.

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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