Independent Random Samples of Are Taken from Each of Two $\bar { x } _ { 1 }$

Multiple Choice

Independent random samples of are taken from each of two normally distributed populations.The relevant sample statistics are n₁ = 10,n₂ = 8, $\bar { x } _ { 1 }$
= 50, $\bar { x } _ { 2 }$
= 42,s₁= 5,and s₂ = 7.If we assume the population variances are equal,give a 95% confidence for $\mu _ { 1 } - \mu _ { 2 }$
)

A) [2.01,13.99]
B) [1.08,14.91]
C) [3.51,12.49]
D) [2.56,13.44]
E) [4.62,11.38]