You Are Considering Moving to Richmond Hill,and Are Concerned About $\mathrm { H } _ { 0 }$

You are considering moving to Richmond Hill,and are concerned about the average one-way commute time to downtown Toronto.Does the average one-way commute time exceed 25 minutes? You take a random sample of 50 Richmond Hill residents and find an average commute time of 29 minutes with a standard deviation of 7 minutes.

A) $\mathrm { H } _ { 0 }$ : ? = 25 $\mathrm { H } _ { \mathrm { A } }$ : ? > 25
B) $\mathrm { H } _ { 0 }$ : ? = 29 $\mathrm { H } _ { \mathrm { A } }$ : ? < 29
C) $\mathrm { H } _ { 0 }$ : ? = 29 $\mathrm { H } _ { \mathrm { A } }$ : ? > 29
D) $\mathrm { H } _ { 0 }$ : ? = 25 $\mathrm { H } _ { \mathrm { A } }$ : ? ? 25
E) $\mathrm { H } _ { 0 }$ : ? = 25 $\mathrm { H } _ { \mathrm { A } }$ : ? < 25