Supposing that both populations are normally distributed, test whether u1 not equal u2 at the a = 0.05 level of significance for the given sample data.
Population 1 Population 2
n 17 17
_
x 17.4 21.6
s 5.1 5.2
Should the null hypothesis be rejected?
A. Yes, because the test statistic is in the critical region
B. No, because the test statistic is not in the critical region
C. No, because the test statistic is in the critical region.
D. Yes, because the test statistic is not in the critical region.