The average salary of 25 random employees in acertain financial sector was 3400 USD. The samplestandard deviation was 270 USD. We areinterested in the 90% confidence interval for thepopulation mean. What is the value of the standarderror?Select one:О а. 54оb. 108O c. 90O d. 72

Givensample size(n)=25Mean(x)=3400standard deviation(s)=270

Answered: The average salary of 25 random…

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 25 random employees in a certain financial sector was 3400 USD. The sample standard deviation was 270 USD. We are interested in the 90% confidence interval for the population mean. What is the value of the standard error? Select one: O a. 54 O b. 108 O c. 90 O d. 72