It has been determined that as long as the mean temperature of the discharged wa

Question

It has been determined that as long as the mean temperature of the discharged water is at most ISO F degree, there will be no negative effects on the river's ecosystem. To investigate whether the plant is in compliance with regulations that prohibit a mean discharge water temperature above ISO F degree. 100 samples have been collected, with sample mean 153 and sample standard deviation 20. What hypotheses should be tested? what is your conclusion about the hypotheses? (set the significance level to be 0.05)

Explanation / Answer

It has been determined that as long as the mean temperature of the discharged wa

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