2. The length of time students needed in order to complete a criminal justice test follows a distribution that is approximately normal. Cory finds a random sample of 10 criminal justice students and records their test taking times: A= [73.1, 70.4, 68.7, 72.9, 76.7, 78.2, 73.2, 70.2, 64.8, 66.7]. Construct a 95% confidence interval for the mean test taking time on the criminal justice test. a. Step 1 b. Step 2 c. Step 3 d. Step 4 e. Step 53. The Medical Rehabilitation Foundation reports that the average cost of rehabilitation for stroke victims is $24,672. To see if the average cost of rehabilitation is different at a large hospital, a researcher selected a random sample of 35 stroke victims and found that the average cost of their rehabilitation was $25,266 with a standard deviation of $3.251. Can we conclude that the average cost at a large hospital is different at a 1% level of signicance? 3. Step1