For each combination of sample size and sample proportion, find the approximate margin of error for the 95% confidence level. (Round the answers to three decimal places.) (a) n = 300, p̂ = 0.58. (b) n = 500, p̂ = 0.58. (c) n = 500, p̂ = 0.30.

For each combination of sample size and sample proportion, find the approximate margin of error for the 95% confidence level. (Round the answers to three decimal places.) (a) n = 300, p̂ = 0.58. (b) n = 500, p̂ = 0.58. (c) n = 500, p̂ = 0.30.

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

100%

For each combination of sample size and sample proportion, find the approximate margin of error for the 95% confidence level. (Round the answers to three decimal places.)

(a) n = 300, p̂ = 0.58.

(b) n = 500, p̂ = 0.58.

(c) n = 500, p̂ = 0.30.

(d) n = 500, p̂ = 0.70.

(e) n = 1100, p̂ = 0.60.

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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