A sample of n = 9 scores is selected from a population with a mean of u = 70, and a treatment is administered to the sample. After treatment, the sample has M = 74 and S5 = 288. If a hypothesis test with a + statistic is used to evaluate the treatment effect, then what value will be obtained for the t statistic? a. t = 1 b. + = 1.50 c. + = 2 d. t = 4