Use Microsoft Excel's Regression tool to estimate an average variable cost function of the form AVC=a+bQ+cQ2 . Be sure to note which variable is the dependent variable. If only Q is provided, make sure you create an additional column and calculate Q2 . Is the regression model statistically significant? Answer 1 Question 1 , since the p-value for the F-test is Answer 2 Question 1 , the overall model is statistically significant