Arnold Compares the Means of Three Groups and Calculates a Value

Multiple Choice

Arnold compares the means of three groups and calculates a value of -2.01 for the F-ratio. This implies ______.

A) the mean of the first group is the highest of the three groups
B) the mean of the third group is the highest of the three groups
C) the differences between the means are statistically significant
D) he has made an error in his calculations