Question: Dr. Oberg and Dr. Zelinski are two of the world's leading researchers in the highly competitive field of feline intelligence. After many years, and several billions of dollars worth of research, each scientist has independently developed accurate tests of feline IQ. Robin and Fred are each convinced that their respective cats are the most intelligent. Robin has given her cat, Wally, Dr. Oberg's patented Felis Intelligentsia IQ test, which has a mean of 103 and a standard deviation of 4.1, and Wally has scored an impressive 112. Fred, on the other hand, has opted to administer to his cat, Heisenberg, Dr. Zelinski's Is Your Cat Smarter Than This Rock? (IYCSTTR) IQ test. Heisenberg has attained a score of 87 on the illustrious IYCSTTR, which has a mean of 70 and a standard deviation of 5.6. Whose cat is smarter, and why?