Suppose We Wish to Test H₀: ?₁ - ?₂ $\bar { X }$

Suppose we wish to test H₀: ?₁ - ?₂ ? 0 versus H_A: ?₁ - ?₂ > 0.Independent random samples are taken from two normally distributed populations with unknown variances.The following sample statistics are given: $\bar { X }$
₁ = 15.4, $\bar { X }$
₂ = 14.5,s₁ = 2,s₂ = 2.28,n₁ = 35,n₂ = 18.Assuming that the population variances are not equal,what is the value of the appropriate test statistic?

A) 1.12
B) 1.73
C) 1.61
D) 2.01
E) 1.42