To determine whether the Wilson Company is complying with federal requirements for cleaning its waste water, sample measurements are taken every so often. One requirement is that the average pH level not exceed 7.4. Suppose a sample of 95 pH measurements has been taken. The data for these measurements are shown in the file called Wilson Water.

A) Considering the requirements for pH level, state the appropriate null and hypotheses. Discuss why it is appropriate to form the hypotheses with the federal standard as the alternative hypothesis.

B) Based on the sample data of pH levels, what should the company conclude about its current status on meeting the federal requirements? Test the hypothesis at the 0.5 level. Discuss your results in a memo to the company's environmental relations manager.

G H K M N O P Q To determine whether the Wilson Company is complying with federal requirments for cleaning its waste water, sample measurments are taken ebery so often. One requirement is that the average pH level not exceed 7.4. Suppose a sample of 95 pH measurments has been taken. The data for these measuements are shown in the file called Wilson Water. A) Considering the requirments for pH level, state the appropriate null and hypotheses. Discuss why it is appropriate to form the hypotheses with the federal standard as the alternative hypothesis. B) Based on the sample data of pH levels, what should the company conclude about its current status on meeting the federal requirements? Test the hypothesis at the 0.5 ;evel. Discussyour results in a memo to the company's enviornmetal relations manager