for my stats class, any help is really appreciated!

Researchers investigated the effect of Taser shock on the components of blood. An experiment was carried out with 11 wild boar by measuring the characteristic of the blood before and after a Taser shock. One measurement is called the mean corpuscular volume. The summary of the mean corpuscular volume is shown in the table below: Mean Standard deviation Before 54.5 2.4 After 57.8 2.6 Difference (After - Before 3.3 3.7 (a) Construct a 95% confidence interval for the true mean change in the mean corpuscular volume, and interpret the interval. (b) Conduct an appropriate test for this problem. Draw conclusion in the context of the problem based on the p-value that you approximated