In each case, determine whether the sample sizes are large enough to conclude that the sampllng distribution of (PI - F2) is approximately normal.

a. n1 = 12, n, = 14, 6, = .42, 13, = .57

b. n, = 12,n2 = 14. p, = .92,j3, = .86

c. n, = n2 = 30, j3, = .70, 6, = .73

d. n, = 100, n, = 250, p, = .93, 5, = .97

e. n1 = 125, n, = 200, j3, = .08, p2 = .12