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Name: A cosmetics company claims that teenage ladies consume an average of P
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Description: A cosmetics company claims that teenage ladies consume an average of Php 150 monthly for cosmetic products. In order to verify this claim, a researcher conducted a survey to 40 teenage ladies and found that their mean monthly expense for cosmetic pro

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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A cosmetics company claims that teenage ladies consume an average of Php 150 monthly for cosmetic products. In order to verify this claim, a researcher conducted a survey to 40 teenage ladies and found that their mean monthly expense for cosmetic products is Php 146 with standard deviation of Php 12. Using α=0.05, test whether the companies claim is realistic or not?

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