what is the T critical value for this test?

Question 46 You are to conduct a study to see if your training program has an effect on number of free throws 9th graders can make in a 3 min time period. Pervious classes have averaged 9 free throws in 3 min. so your Ho is mu = 9. You are to conduct a two-tail test with an alpha = 0.05. You have a sample of n = 5 students. After training, you test them and their scores are as follows: 12, 8, 13, 15, and 11. What is the t critical value for this test? 02.132 2.0 2.776 02571