Probe vehicles are used to compute travel times of highway segments around San Antonio, Texas. Forty-five vehicles are used and they drive for approximately one hour at a time. A transportation center...

Probe vehicles are used to compute travel times of highway segments around San Antonio, Texas. Forty-five vehicles are used and they drive for approximately one hour at a time. A transportation center wants to compare the travel times on two nearby highway segments. Which of the following tests would be most appropriate and why: paired t-test, pooled t-test, or unequal variance t-test? What plot could you use to help confirm your answer?