A sample of difference scores from a repeatedmeasures experiment has a mean of MD = 4 with a standard deviation of σ = 6.
a. If n = 4, is this sample sufficient to reject the null hypothesis using a two-tailed test with a = .05?
b. Would you reject H0 if n = 16? Again, assume a two-tailed test with a = .05.
c. Explain how the size of the sample influences the likelihood of finding a significant mean difference.