I want to be on the right track with this question

9. A researcher used two different bicycles to commute to work One bicycle was steel and weighed 30 pounds; the other was carbon and weighed 20.9 pounds. The commute time (minutes) were recorded with the results shown below Heavier Bicycle Light Bicycle n = 30 n = 26 3': = 107.8 minutes 75 = 108.4 minutes s = 4.9 minutes 5 = 6.3 minutes Use a 0.05 signicant level to test the claim that the mean commuting time with the heavier bicycle is the same as the mean commuting time with the lighter bicycle