question archive An environmentalist is interested in determining if the pH of the creek water behind his house is affected by the new development upstream
An environmentalist is interested in determining if the pH of the creek water behind his house is affected by the new development upstream
Subject:StatisticsPrice: Bought3
An environmentalist is interested in determining if the pH of the creek water behind his house is affected by the new development upstream. He knows that a neutral stream has a pH of 7. Assume pH levels are normally distributed and the standard deviation is known to be 0.5. He takes 16 samples of water and determines the pH. Is the pH of the creek significantly different from neutral? Conduct a hypothesis test to test this claim at the .05 level of significance level.
7.5
7.6
7.1
6.2
6.3
6.9
7.1
7.3
6.3
6.6
7.1
7.1
6.3
6.9
6.7
6.9
