a. In an animal shelter, 100 cats and 50 dogs are being accommodated. Table below shows age group of the cats and dogs. Is the probability of being old equal in cats and dogs? Make a hypothesis test and report a p-value.
b. In a smaller animal shelter, 12 cats and 5 dogs are being accommodated. Table below shows age group of the cats and dogs. Is the probability of being old equal in cats and dogs? Make a hypothesis test and reporta p-value.
c. What is the power of the test in part a?
d. How many animals should be included in the study to repeat the test with the same significance as calculated in part a and %20 more power than calculated in part d?
e. Bonus question : Why are there more old animals in shelters than young ones?
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