\fObservations are taken on sales of a certain mountain bike in 25 sporting goods stores. The regression model was Y = total sales (thousands of dollars), X1 = display floor space (square meters), X2 = competitors' advertising expenditures (thousands of dollars), X; = advertised price (dollars per unit). (a) Fill in the values in the table given here. (Negative values should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Round your t-values to 3 decimal places and p-values to 4 decimal places.) Predictor Coefficient SE calc p-value Intercept 1, 239. 1 346.1 FloorSpace 11. 155 1. 85 Competing Ads -6.580 3.971 Price -0. 14142 0. 08367 (b-1) What is the critical value of Student's tin Appendix D for a two-tailed test at o = .01? (Round your answer to 3 decimal places.) t-value = (b-2) Choose the correct option. O Only FloorSpace differs significantly from zero. O Only CompetingAds differs significantly from zero. O Only Price differs significantly from zero