A company that fills one-gallon containers of water has four machines. Each of these machines is from a different manufacturer. The quality manager needs to determine whether the average fill for these machines is different. A total sample of 19 one-gallon containers, gave an average (in quarts) of 4.03, 4.0017, 3.974, 4.005. An ANOVA test was run.

1) What are the experiments units in this experiment?

2) What are the treatments and response variable in this experiment?

3) The total sum of squares was 0.010579, the mean variance between groups was 0.002359 and the critical F-value is 3.29. What is the conclusion you can make from this data with 95% confidence?