A researcher conducts an experiment on human memory and recruits 15 people to participate in her study. She performs the experiment and analyzes the results. She uses a t-test for a mean and obtains a p-value of 0.17. Which of the following is a reasonable interpretation of her results?

A. This suggests that her experimental treatment has no effect on memory.

B. If there is a treatment effect, the sample size was too small to detect it.

C. She should reject the null hypothesis.

D. There is evidence of a small effect on memory by her experimental treatment.

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P value 017 If P value then ... View the full answer