Not sure if I'm right can someone confirm?

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 ManBody data. SETUP: It is believed that the older the men, the shorter they get. 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 Ob. Two-sided T-test O c. Regression Od. Confidence interval II) Conclusion? (10 points) O a. Yes, we can confirm the assertion. b. No, we cannot confirm the assertion