In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one-sided T-test, or two-sided T-test. All the procedures should be done with a 5% P-value or a 95% confidence interval. Some answers are approximated; choose the most appropriate answer. Open Cars04 data. SETUP: It is believed that Mercedes models with 6 cylinders have highway mileage above 24. Given the data your job is to confirm or disprove this assertion. I) What test/procedure did you perform? (10 points) O a. One-sided T-test O b. Two-sided T-test O c. Regression O d. Confidence interval Il) Statistical interpretation? (5 points) O a. Since P-value is small we are confident that the slope is not zero. O b. Since P-value is small we are confident that one average is smaller than the other. O c. Since P-value is too large the test is inconclusive. O d. None of these. Ill) Conclusion? (5 points) O a. Yes, we can confirm the assertion. O b. No, we cannot confirm the assertion