In a maze running study, a rat is run in a t maze and the result of each run recorded. a reward in the form of food is always placed at the right exit. if learning is taking place, the rat will choose the right exit more often than the left.
suppose that the rat is given n=100 runs in the maze and that he chooses the right exit x=64 times.
would you conclude that learning is taking place?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.