Given $n _ { 1 } = 14 , n _ { 2 } = 23 , \mathrm {~S} = 307 , \text { and } H _ { 1 } : m _ { 1 } > m _ { 2 }$

Multiple Choice

Given $n _ { 1 } = 14 , n _ { 2 } = 23 , \mathrm {~S} = 307 , \text { and } H _ { 1 } : m _ { 1 } > m _ { 2 }$ compute z .

A) 0.74
B) 1.28
C) 17.95
D) 2.22