To test whether animal subjects consume the same amounts of sweet-tasting

solutions, a researcher has 30 total subjects consume one of three sweet-tasting

solutions: sucrose, saccharin, or Polycose. The amount of each solution consumed

(in milliliters) is given in the table below:

a) Is there an effect of solution on the rat's drinking behaviour (use = .05)? Include an ANOVA table to display your results (23 marks).

Step 1: Hypotheses:

Step 2: Decision Criterion (locate the critical region):

Step 3: Obtain the Statistic

Step 4: Make a decision

Step 5: Report the result:

b) Regardless of the results of the omnibus test, perform a Tukey HSD post-hoc test to compare all the pairwise means and report the result (6 marks).

c) Use both eta-squared and omega-squared to describe and interpret the effect size. Which should we use and why (7 marks)?