QUESTION 17Salma wants to estimate the mean waiting time at a bank in Abu Dhabi. Arandom sample of 20 customers yielded a mean of 5.4 minutes and astandard deviation of 2.4 minutes. Given that the waiting time is normallydistributed, which distribution should be used to construct the confidenceinterval?Ot distribution with 20 degrees of freedom.Neither t nor standard normal distribution.Ot distribution with 19 degrees of freedom.Standard normal distribution.

sample size(n)=20Mean ()=5.4standard deviation (s)=2.4

Answered: Salma wants to estimate the 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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