Suppose the sample mean’s score on the comparison distribution is more extreme than the cutoff. What would the psychologist conclude regarding the colorful wallpaper?
A) The research hypothesis that the rats in the sample will learn faster should be rejected.
B) The wallpaper did not have a significant effect on the rate of learning.
C) The color of the chamber had a significant effect on the rate of learning.
D) The results are inconclusive since the null hypothesis cannot be rejected.
Answer: C
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