It is claimed that the average time spent by employees on telephone calls is less than 6 minutes. In a study time spent on the telephone by its employees, a large office monitors a random sample of 25 employee calls and finds the mean length of this calls to be 5.8 minutes with a standard deviation of 1.4 minutes. Is the claim true at 0.05 level of significance?

It is claimed that the average time spent by employees on telephone calls is less than 6 minutes. In a study time spent on the telephone by its employees, a large office monitors a random sample of 25 employee calls and finds the mean length of this calls to be 5.8 minutes with a standard deviation of 1.4 minutes. Is the claim true at 0.05 level of significance?

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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Question

Answer the given problem. 1. It is claimed that the average time spent by employees on telephone calls is less than 6 minutes. In a study time spent on the telephone by its employees, a large office monitors a random sample of 25 employee calls and finds the mean length of this calls to be 5.8 minutes with a standard deviation of 1.4 minutes. Is the claim true at 0.05 level of significance?

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