If the Calculated F Score Obtained in an Analysis of a Three-Group

Multiple Choice

If the calculated F score obtained in an analysis of a three-group design is larger than the "critical F,"the investigator may conclude which two of the following?

A) The F value she calculated would occur by chance more than 5% of the time.
B) The group means are all significantly different.
C) The F value she calculated would occur by chance less than 5% of the time.
D) The group means are not significantly different.