The following null and alternative hypotheses have been stated:

H0: m1 - m2 = 0 HA: m1 - m2  0 To test the null hypothesis, random samples have been selected from the two normally distributed populations with equal variances. The following sample data were observed:

Sample from Population 1 Sample from Population 2 33 29 35 46 43 42 39 39 41 46 44 47 25 33 38 50 43 39 Test the null hypothesis using an alpha level equal to 0.05.