ANOVA (analysis of variance) is an investigation of the differences between the group means to ascertain whether:
A) Sampling errors or true population differences explain their failure to be equal.
B) True population differences explain failure to be equal.
C) Sampling errors or true population differences explain their true equality.
D) Sampling errors explain the failure to be equal.
Answer: A) Sampling errors or true population differences explain their failure to be equal.