Analyzing Multiple Groups and Factorial Experiments the Analysis of Variance

Analyzing Multiple Groups and Factorial Experiments The analysis of variance

A) compares the difference between means to an estimate of variability.
B) compares the difference between pairs of means to an estimate of variability.
C) compares the frequency of responses in a sample to the estimated frequency in the population.
D) divides variability in the data into component parts and then compares and evaluates them for statistical significance.