We want to test whether the mean lead levels in the drinking water is worse in city A and City B. In order to test this,

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We Want To Test Whether The Mean Lead Levels In The Drinking Water Is Worse In City A And City B In Order To Test This 1 (50.27 KiB) Viewed 11 times

We want to test whether the mean lead levels in the drinking water is worse in city A and City B. In order to test this, a sample of 49 different water samples was taken from city A, and a sample was taken from 36 different water samples in city B. City A has a sample average of 2.3 micrograms of lead per deciliter of water, and city B has a sample average 1.4 micrograms of lead per deciliter of water. Further, city A has a known standard deviation of σ = 1.5, and city B has a known standard deviation of OB = 1.7. Find the p-value for the following hypothesis test: Ho : μα – MB = 0 vs Ha : μα – MB > 0. 0.0056 0.9943 0.0113 0.0159 B B B