An article that appeared in the British Medical Journal (2010) presented the results of a randomized experiment conducted by researcher Jeremy Groves, whose objective was to determine whether the weight of his bicycle could affect his travel time to work. On each of 56 days (from mid-January to mid-July 2010), Groves tossed a 1 coin to decide whether he would be biking to work on his carbon frame (lighter) bicycle that weighed 20.9 lbs or on his steel frame (heavier) bicycle that weighed 29.75 lbs. He then recorded the commute time (in minutes) for each trip.Here are the summary statistics for his data:

Bike Type	Sample size	Sample average	Sample SD
Carbon frame (lighter)	26	108.34 min	6.25 min
Steel frame (heavier)	30	107.81 min	3.89 min

Which of the following applets would be most appropriate to use, in the context of this study?

One Mean

One Proportion

Multiple Proportions

Multiple Means

Matched Pairs