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The EPA requires that drinking water not exceed 15 parts per billion. A scientist collects water samples from 24 randomly sampled households. The...
The EPA requires that drinking water not exceed 15 parts per billion. A scientist collects water samples from 24 randomly sampled households. The sample mean was 15.15 parts per billion and the sample standard deviation was 0.4 parts per billion. The level of significance was determined to be 0.05. A t-test resulted in a p value of 0.04.
What can be concluded from this study?
a.Reject the null hypothesis
b.Accept the null hypothesis.
c.Nothing can be concluded about the study without knowing what the alternative hypothesis was.
d.Reject the alternative hypothesis.
