Question: A random sample of 100 observations from a population with standard deviation 82 yielded a sample mean of 115. a. Test the null hypothesis that

A random sample of 100 observations from a population with standard deviation 82 yielded a sample mean of 115.

a. Test the null hypothesis that =100 against the alternative hypothesis that >100, using =0.05. Interpret the results of the test.

What is the value of the teststatistic?

b. Test the null hypothesis that =100 against the alternative hypothesis that 100, using =0.05. Interpret the results of the test.

c. Compare the results of the two tests you conducted. Explain why the results differ.

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