Consider the following hypothesis test for the mean differen

Consider the following hypothesis test for the mean difference. (Give your answers correct to four decimal places.)

(a) Determine the p-value for H_o: _d = 0 and H_a: _d > 0, with n = 23 and t = 1.99.

(b) Determine the p-value for H_o: _d = 0 and H_a: _d 0, with n = 19 and t = -1.82.

(c) Determine the p-value for H_o: _d = 0 and H_a: _d < 0, with n = 26 and t = -2.58.

(d) Determine the p-value for H_o: _d = 0.75 and H_a: _d > 0.75, with n = 12 and t = 3.47.

Solution

a) p value = 0.0296(right tailed)

b) 0.0854(two tailed)

c) 0.0081(left tailed)

d) 0.0026 (right tailed)