Answered: city has experienced an increase in its…

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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A city has experienced an increase in its population over the past 10 years. The city council wants to know if this increase is significant, and if so, by how much. The current population is 100,000, and a random sample of 500 residents was taken. The sample mean and standard deviation were found to be 28 years and 7 years, respectively. Using a significance level of 0.05, test the hypothesis that the population mean age has increased since 10 years ago. Also, calculate the effect size of the increase in population mean age.

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Given that

A city has experienced an increase in its population over the past 10 years.

n=500, df=n-1=500-1=499

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