Perform the following tests of hypotheses, assuming that the populations of paired differences are normally distributed. a.

Question:

Perform the following tests of hypotheses, assuming that the populations of paired differences are normally distributed.
a. H0: µd = 0, H1: µd ≠ 0, n = 9, = 6.7, sd = 2.5, α = .10
b. H0: µd = 0, H1: µd > 0, n = 22, = 14.8, sd = 6.4, α = .05
c. H0: µd = 0, H1: µd < 0, n = 17, = 9.3, sd = 4.8, α = .01