Salt sensitivities for ten patients before and after anti hypertensive treatment are below:

Patient: 1 2 3 4 5 6 7 8 9 10

Before 6.42 -6.71 1.86 11.40 9.39 1.44 9.97 22.86 7.74 15.49

After 10.70 11.40 2.09 10.19 6.99 -0.77 3.29 6.11 -4.02 8.04

(a) Are the conditions met for running a paired t-test? Explain, addressing each condition.

(b) Regardless of your answer to part (a), run a paired t-test . Be sure to state the null and alternative hypothesis, the test statistic, the p-value, and your conclusion.

(c) What is a good estimate for the mean sensitivity change?