Star, Inc. used Excel to run a least-squares regression analysis, which resulted in the following output: Regression Statistics Multiple R R Square Observations Intercept Production (X) 0.9751 0.9513 30 Coefficients 174,448 11.02 Standard Error T Stat P-Value 61,048 2.86 0.021 0.9222 11.95 0.000 How much of the variation in cost is not explained by production? Multiple Choice It is impossible to determine. 4.87% 7.78% 2.49%