Question 2 (20 marks) Study the following output from a regression analysis to p

Question

Question 2 (20 marks) Study the following output from a regression analysis to predict y from x. a. What is the equation of the regression model? b. What is the meaning of the coefficient of x? c. what is the result of the test of the slope of the regression model? Lets . 10.Why is the t ratio negative? d. Comment on r2 and the standard error of the estimate. e. Comment on the relationship of the F value to the t ratio for x. f. The correlation coefficient for these two variables is .7918. Is this result surprising to you? Why or why not? (1 marks) (2 marks) (5 marks (2 marks) (5 marks) (5 marks)

Explanation / Answer

a.

y=67.231-0.0565x.

b.

For every increase of 1 in x, y would go down by -0.0565.

c.

-5.5. It is negative because coeff for x is negative.

d.

r^2 is 0.627 which means 62.7% of the variation in dependent variable is accounted for by the independent variable and standard error is 10.32.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.