Question

A coach wants to see if drinking water during a race improves times. To test this, he has his runners run around a track for 10 miles each practice, and lets half of them drink during the run, and half do not, varying the halves each day, for a 2 week period. This is an example of what kind of statistical study?

1.Experiment
2.Observational Study
3.Survey

Answer 1

This is an experiment. The coach has two groups, one control and one not, and independent)(run length) and dependent (water) variables. May I add that varying the groups is a smart move because it reduces the risk of injury to his players.

Answer 2

Answer: 1. Experiment

Explanation:

• A experiment is a scientific process which is undertaken to create a discovery , demonstrate a known fact or test a hypothesis .

Here a coach wants to see if drinking water during a race improves times. To test this, he has his runners run around a track for 10 miles each practice, and lets half of them drink during the run, and half do not, varying the halves each day, for a 2 week period.

Hence, this is an example of an experiment .