Statıstıcs I Deneme Sınavı Sorusu #841708
A study was conducted to determine the effects of two different training programs on athletes. Sixty athletes were randomly assigned into two training programs each including 30 athletes. One group is given only coffee and water to drink before trainings while the other group is given only water to drink before trainings. After training programmes, an assesment test was applied to the athletes. One month later, the group who had drunk coffee and water before the trainings progressed more than the group who only had drunk water before the trainings. What do you think is the most acceptable conclusion of this experiment?
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The sample size is too small to conclude anything at all; if this was done on bigger samples of people, the evidence one way or the other would be more solid. |
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This result is definitely a result of random variation and no attention should be paid to it. |
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We cannot conclude anything either way, since this is done just for two groups of athletes. |
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This result constitutes tentative evidence of the benefits of coffee to athletes. |
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Drinking coffee and water on pre-trainings appears to be beneficial to athletes. An experiment with more athletes should be undertaken. |
The paragraph is an example of experimental design in sports science. So, drinking coffee and water on pre-trainings appears to be beneficial to athletes. More experiments with more athletes should be undertaken in other conditions and controls.
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