NPI-16 scores were obtained for a random sample of 16 male psychology students before and after they watched a 2 hr documentary on the life of Donald J. Trump. The mean difference score was mD = mB–mA = 2, with a variance of 2. Assuming H1: μB – μA ≠ 0 and α = .05, then the p-value associated with the tobs is ______.
p > .05
p < .05
p < .025
p < .01
