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Which of the following is not a good example of a scientific hypothesis (i.e., the hypothesis you would set up to test against the null hypothesis)?

Smaller class size is related to better academic performance.

There is no relationship between fatigue and reaction time.

A person's level of self-esteem is related to how long he or she will persist at a difficult task.

Increased sugar consumption leads to an increased level of activity.

my answer is A is it correct

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1 answer
  1. Right, A.

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    Ms. Sue

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