To evaluate the effect of a treatment, a sample of n = 8 is

Last updated: 7/9/2022

To evaluate the effect of a treatment, a sample of n = 8 is obtained from a population with a mean of µ = 50, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 55. a. Assuming that the sample variance is s² = 32, use a two-tailed hypothesis test with α = .05 to determine whether the treatment effect is significant and compute both Cohen's d and r^2 to measure effect size.