In an effort to determine which company between PrimacomOutsourcing Company and Technica Global Services has bettercustomer service, an independent survey group gathered data onthe length of time (in minutes) a customer has to wait on holdbefore someone answers the phone when calling the customer carehotline for assistance. The data is summarized below.StatisticsPrimacom Outsourcing Company Technica Global ServicesMean8.149.426Standard Deviation1.3451.813Sample Size77Is there a significant difference between the average lengths oftime customers are on hold for the two companies? Use a 5% level ofsignificance. Assume that the lengths of time on hold are normallydistributed with unknown but equal population variances.A. Perform a complete test of hypothesis.B. Select here the conclusion for this test of hypothesis.There is a significant difference between the average lengths of time customers are on hold for the twocompanies.There is no significant difference between the average lengths of time customers are on hold for the twocompanies.

Hypothesis test for two-sample means can be done either by z-test or t-test.

Answered: In an effort to determine which company…

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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