Suppose you want to test the mean of quiz scoresH0:

72versusH1:

< 72. Which of the following possible results based on a sample of size 25 from a normal population gives the strongest evidence to rejectH0in favor ofH1?

a.

X= 67, S = 8

b.

X= 68, S = 6

c.

X= 69, S = 5

d.

X= 70, S = 4