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Observations are taken on sales of a certain mountain bike in 24 sporting goods stores. The regression model was ๐‘Œ = total sales (thousands of dollars), competitors' advertising expenditures (thousands of dollars), ๐‘‹3 = 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. places and p-values to 4 decimal places.) Predictor Intercept Floorspace Competing Ads Price Coefficient SE 1,272.5 11.590 -6.697 -0.14802 t calc 361.9 1.06 3.938 0.08391 p-value 3.516 10.934 -1.701 -1.764 0.0022 0.0000 0.1045 0.0930 (b-1) What is the critical value of Student's t in Appendix D for a two-tailed test at ๐›ผ = 0.01? (Round your answer to 3 decimal places.) t-value = 2.845 (b-2) Choose the correct option. Only FloorSpace differs significantly from zero. Only Price differs significantly from zero. Only CompetingAds differs significantly from zero Answer: Only FloorSpace differs significantly from zero. P-value: 0.0000 ousands of dollars), ๐‘‹1 = display floor space (square meters), ๐‘‹2 = enter "0" wherever required. Round your t-values to 3 decimal t calc = Coefficient / SE n= 24 k= 3 DF = n - k - 1 = 20 ฮฑ= 0.01 Observations are taken on sales of a certain mountain bike in 24 sporting goods stores. The regression model was ๐‘Œ = total sales (thousands of dollars), competitors' advertising expenditures (thousands of dollar ...
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