Question

Answer question to 4 decimals.

Economists wish to look at the relationship between the price of regular unleaded gasoline in the U.S. (units-S/gallon) and the acquisition cost of OPEC crude oi (units $10/barrel) Summary measures for a random sample of 13 years are given below 13 28.6 68.9 60.5 329.67 142.83 Question1 What is the estimated regression equation? (Specify which variable is y and which is x) where Show the ANOVA table Question2 df MS Regression Error Total Question 3 What is the r2 for this model? Question 4 what is the 90% confidence interval for B1 (with appropriate units)? Lower Endpoint Upper Endpoint

Answer 1

niven table :- 13 a8.6 G8.9 60.5 327.67 142.83 χι O lWhat is the estimated egess ion quation? 13 (142.83) -605xG) 1856 79 - 1730.3 4285-71-3GG0.25 QC.49 G25.4G 1 .20a8 .a 923 0.941105 Po = 1.328060

ANoVA Table :- N-13 -142.83-133. (38.G (Sy) :69.9-G2.19 S5.18 674.012594 Ms 1.963406 1.967406 4.012594-0.364าร SSe df Ms MS .G 406 Regress iom (r) Errà (e) Tota (t) 1.9G 7 40G 4.012594 5.98 13-1 la

967 400 039219 5.9γ 90% confidence Snl.TVn' fs.A.? 1.395 0.10,,1 MS (刨) (Go.5) 13 327.G7 42-1183 MSe 0 364 9 /o. 00758 42-11231 с6, 0.087074 70 y, inkvol. confidence τ (0.20ュュー0-156374 )o.202ユナ0-156374 - 0.04582G 20- 358 Co.fidenc, Sr." val (0.04S8 3 , О. 3SYG ar : 10.0458 3 , o.3SBG :