Given two dependent random samples with the following results:
Population 1: 63 62 61 81 55 69 75 53
Population 2: 73 52 63 72 65 72 71 60
Can it be concluded, from this data, that there is a significant difference between the two population means?
Let d=(Population 1 entry)-(Population 2 entry). Use a significance level of α=0.01 for the test. Assume that both populations are normally distributed.
Find the value of the standard deviation of the paired differences. Round your answer to one decimal place.