For a random sample of 36 data pairs, the sample mean of the differences was 0.8. The

Question:

For a random sample of 36 data pairs, the sample mean of the differences was 0.8. The sample standard deviation of the differences was 2. At the 5% level of significance, test the claim that the population mean of the differences is different from 0.
(a) Is it appropriate to use a Student’s t for the sample test statistic? Explain. What degrees of freedom are used?
(b) State the hypotheses.
(c) Compute the sample test statistic.
(d) Estimate the P-value of the sample test statistic.
(e) Do we reject or fail to reject the null hypothesis? Explain.
(f) What do your results tell you?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...