A woman decided to check and see how accurate the National Weather Service was in predicting the high temperature each data. She collected the following data: Day 1 2 3 4 5 6 7 8
Forecast 78 79 79 81 79 77 79 81
Actual 79 76 76 78 78 79 81 80

For a test of the claim that mean forecast high temperatures were the same as mean actual high temperatures, which tests should she use?