Canvas X X C @ D Question 3 50 pts A LA Fitness manager wants to determine whether a LA Fitness member will make difference after taking three months private gym classes. He selected 15 customers and measured their weights including the weights before the private gym classes and the weights after three months of private gym classes, at a significance level of 0.10. Before the Private Gym Classes After the Private Gym Classes Difference Mean 134.5 128.5 6 Sample Size 15 15 15 Standard Deviation 11.69 12.44 6.68 Please type your answer by order (please keep 3 decimals). 1. Is it a one-tailed problem or a two-tailed problem? 2. Please choose the question case: A. Large Independent Sample Means Case B. Small Independent Sample Means Case C. Paired Difference Sample Mean Case D. Large Independent Sample Proportion Case 3. Type the test statistic result. 4. Type the rejection region (such as z> 1.23, t