Observations are taken on sales of a certain mountain bike in 26 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), X3 = 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 Intercept FloorSpace CompetingAds Price Coefficient t-value = 1,246.6 11.424 (6.120) (0.14722) SE 309.6 1.730 3.907 0.08380 tcalc p-value (b-1) What is the critical value of Student's tin Appendix D for a two-tailed test at a = .01? (Round your answer to 3 decimal places.)

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