In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one-sided T-test, or two-sided Ttest. 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 ManBody data. SETUP: It is believed that men 25 years or younger have (on average) different heights from men older than 25 years. Given the data your job is to confirm or disprove this assertion. I) What test/procedure did you perform? (10 points) Aa. One-sided T-test A b. Two-sided T-test A 0. Regression A d. Confidence interval ll) Conclusion? (10 points) Aa. Yes, we can confirm the assertion. A b. No, we cannot confirm the assertion