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 Honda models (on average) have less horsepower than the Jaguar models. Given the data your job is to confirm or disprove this assertion.

DATA:https://www.limes.one/Content/DataFiles/cars04.txt

I) What test/procedure did you perform?

a. One-sided T-test

b. Two-sided T-test

c. Regression

d. Confidence interval

II) Statistical interpretation?

a. Since P-value is small we are confident that the slope is not zero.

b. Since P-value is small we are confident that one average is smaller than the other.

c. Since P-value is too large the test is inconclusive.

d. None of these.

III) Conclusion?

a. Yes, we can confirm the assertion.

b. No, we cannot confirm the assertion.