Consider the following hypothesis statement using and data from two independent samples. Assume the population variances are equal and the populations are normally distributed. Complete parts a and b. H0: μ1−μ2≤8

x1=72.2
x2=56.4
H1: μ1−μ2>8
s1=17.5
s2=15.9
n1=20
n2=22

Required:
Calculate the appropriate test statistic and interpret the result.