E. If the companv wanted to build a regression modei using onlyr two independent variables to predict the average heating cost of these ho uses, what variables should be use? Expiain your reasons {1 points]. If the company wanted to build a regression modei using oniv three independent variables to predict the average heating cost of these houses, what variabies should be use? Expiain vour reasons {1 points}. Suppose the company.r chooses to use the regression function with all four independent variables. What is the estimated regression tun ctio n? Explain 1..rol..tr reasons [1 points}. Suppose the compamlr decides to use the model with the highest adjusted FtI statistic. Develop a 953i\": prediction interval for the average monthly.r heating cost of a house with 4 inches of attic insulation; a Evea rold furn aoe. 25cc: square feet, and in a location with an average outside winter temperature of 4D. Interpret this interval {1 points}