4. As an animal psychologist, you wander whether you can teach cats and dog the same tricks. You get 15 cats 15 dogs and teach them three tricks: "sit", "push all the objects of the table", and \"roll over". Teaching only one trick to each animal, you keep a record of how many days it takes before they learn the tricks (total 16 points). Type of Trick "sit" "push all the objects of the table" " roll over" Dogs 2,1,3,1,2 9,10,11,13,17 6, 9,7, 8, 10 Cats 2, 5, 2, 4, 3 4, 5, 4, 6, 7 13,12,15,17,13 a. State and test the hypotheses (tabulate your calculations). (10 points) b. Express the results of your analysis in words and show them graphically. Ensure that you name the axes properly. Discuss your findings as they appear on the graph (main effects, interaction). (3 points) c State for which of the above variables would it be appropriate do a post-hoc test and why? Conduct a pos-hoc test of your choice (3 points)