The average salary of 64 employee was 5400. Using historicaldata, we will assume that the population standard deviationis 260. Find the 95% confidence interval for the populationmean salary.Select one:O a. 5400 ± 66.15O b. 5400 ± 68.60O c. 5400 ± 63.70O d. 5400 61.25

Given,sample size(n)=64mean(X¯)=5400standard deviation(σ)=260α=1-0.95=0.05α2=0.025Z0.025=1.96…

Answered: The average salary of 64 employee was…

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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The average salary of 64 employee was 5400. Using historical data, we will assume that the population standard deviation is 260. Find the 95% confidence interval for the population mean salary. Select one: O a. 5400 ± 66.15 O b. 5400 ± 68.60 O c. 5400 ± 63.70 O d. 5400 61.25