Question 5A statistics professor sample mean score for an exam is 80 with a population standard deviation of 7points from a sample of n=30. Calculate a 95% confidence interval for the population mean.(77.38, 82.61)(77.83, 82.16)(77.49, 82.5)(77.89, 82.1)

Given,sample size(n)=30mean(x¯)=80standard deviation(σ)=7α=1-0.95=0.05α2=0.025Z0.025=1.96 (from…

Answered: A statistics professor sample mean…

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 statistics professor sample mean score for an exam is 80 with a population standard deviation of 7 points from a sample of n=30. Calculate a 95% confidence interval for the population mean. O (77.38, 82.61) (77.83, 82.16) (77.49, 82.5) (77.89, 82.1)