You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately o = 79.3. You would like to be 98% confident that your estimate is within 5 of the true population mean. How large of a sample size is required?

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately o = 79.3. You would like to be 98% confident that your estimate is within 5 of the true population mean. How large of a sample size is required?

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

Confidence interval problem (sample size). Any additional help with the ti-84 plus and how to calculate would be appreciated if known. Thanks!

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the
population standard deviation is approximately o =
estimate is within 5 of the true population mean. How large of a sample size is required?
79.3. You would like to be 98% confident that your

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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