If the mean score of the sample is more extreme than the cutoff score on the comparison distribution, the psychologist will conclude that
A) the null hypothesis that the rats in the sample will learn more is supported.
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.
C
Psychology
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