You flipped a coin 300 times, and observed that the coin landed heads up 210 times. Use the point estimator from the study to find the sample size necessary for an 80% confidence interval to specify the proportion to within ±0.01. Round the value up to the next integer.

You flipped a coin 300 times, and observed that the coin landed heads up 210 times. Use the point estimator from the study to find the sample size necessary for an 80% confidence interval to specify the proportion to within ±0.01. Round the value up to the next integer.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

You flipped a coin 300 times, and observed that the coin landed
heads up 210 times.

Use the point estimator from the study to find the sample size necessary for an 80% confidence interval to specify the proportion to within ±0.01. Round the value up to the next integer.

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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