2. Amanufacturer has designed athletic footwear which it hopes willimprove the p
ID: 2954718 • Letter: 2
Question
2. Amanufacturer has designed athletic footwear which it hopes willimprove the performance of athletes runningthe 100-meter sprint. It wishes to perform a hypothesis test tocompare the times of athletes at the 100meters wearing these shoes with their times wearing their usualshoes.
A) Pooledt-test, since the standard deviations of the two sets of times arelikely to be the same.
B) Two-samplet-test, since the experiment has two sets oftimes.
E) Not enough information is given todetermine what test would be best.
Explanation / Answer
A) Paired t-test, since there are two sets of measurements onthe same subjects providing a natural linking. Since it is a paired t-test, so we can detectdifferences between the population means differe if the sample dataavailable. C) Either two-sample or paired t-test would be equallyaccurate.Related Questions
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