If the calculated F is greater than the critical value of F, the experimenter should conclude that _____
a. chance probably caused the difference between the group means
b. none of the group means are significantly different from each other
c. the treatment probably caused the differences in the group means
d. multiple t tests would probably have been a better way to analyze the results
C
When the calculated F is greater than the critical F, the results are said to be "significant," meaning it is unlikely that chance alone caused the differences between the groups and likely that the difference was caused by the treatment.
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