In Testing the Hypotheses:
H₀: 1 - 2 $\bar { X } _ { 1 }$

Essay

In testing the hypotheses:
H₀: 1 - 2 = 0
H_A: 1 - 2 > 0,
two random samples from two normal populations produced the following statistics:
n₁ = 51, $\bar { X } _ { 1 }$ = 35, s1 = 28.
n₂ = 40, $\bar { X } _ { 2 }$ = 28, s2 = 10.
Assume that the two population variances are different. What conclusion can we draw at the 10% significance level?