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 men 25 years or younger are taller than men 70 years or older. Given the data your job is to confirm or disprove this assertion.

DATA: https://www.limes.one/Content/DataFiles/Man_body.txt

I) What test/procedure did you perform?

a. One-sided T-test

b. Two-sided T-test

c. Regression

d. Confidence interval

II) Conclusion?

a. Yes, we can confirm the assertion.

b. No, we cannot confirm the assertion.