Answered: Determine the sample size of a research…

Determine the sample size of a research on: ( 25%) a.) 1,529 freshmen at 95% accuracy ( 5% error). b.) 471 sophomore at 95% accuracy (5% error). c.) 441 Junior at 99% accuracy ( 1% error)

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

Determine the sample size of a research on: ( 25%)
a.) 1,529 freshmen at 95% accuracy ( 5% error).
b.) 471 sophomore at 95% accuracy (5% error).
c.) 441 Junior at 99% accuracy ( 1% error).
d.) 652 senior at 99% accuracy ( 1% error).
e.) 10,000 households at 90% accuracy ( 10% error).

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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