Answered: We want to test whether the mean…

Name: We want to test whether the mean fluride levels in the drinking water
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: We want to test whether the mean fluride levels in the drinking water is better in city A or City B. In order to test this, a sample of 24 different water samples was taken from city A and a sample was taken from 23 different water samples in city B.

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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We want to test whether the mean fluride levels in the drinking water is better in city A or City B. In order to test this, a sample of 24 different water samples was taken from city A and a sample was taken from 23 different water samples in city B. City A has a sample average of 1.7 micrograms of fluride per deciliter of water and city B has a sample average 2.0 micrograms of lead per deciliter of water. Further, city A has a known standard deviation of A=.96 and city B has a known standard deviation of B=.89. Find the p-value for the following hypothesis test: Null: uA-uB=0 vs. Alternative: uA-uB<0.

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