Observations are taken on sales of a certain mountain bike in 24 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 "O" wherever required. Round your t-values to 3 decimal places and p-values to 4 decimal places.) Predictor Coefficient SE tcalc p-value Intercept 1,254.2 300.2 FloorSpace 11.310 1.69 Competing Ads -6.260 3.999 Price -0.14748 ৪.০৪288 (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.) t-value = (b-2) Choose the correct option. O Only FloorSpace differs significantly from zero. O Only Price differs significantly from zero. O Only CompetingAds differs significantly from zero.

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Observations are taken on sales of a certain mountain bike in 24 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 "O" wherever required. Round your t-values to 3 decimal places and p-values to 4 decimal places.)
Predictor
Coefficient
SE
tcalc
P-value
Intercept
1,254.2
300.2
FloorSpace
11.310
1.69
Competing Ads
-6.260
3.999
Price
-0.14748
0.08280
(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.)
t-value
(b-2) Choose the correct option.
Only FloorSpace differs significantly from zero.
O Only Price differs significantly from zero.
O Only CompetingAds differs significantly from zero.
Transcribed Image Text:Observations are taken on sales of a certain mountain bike in 24 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 "O" wherever required. Round your t-values to 3 decimal places and p-values to 4 decimal places.) Predictor Coefficient SE tcalc P-value Intercept 1,254.2 300.2 FloorSpace 11.310 1.69 Competing Ads -6.260 3.999 Price -0.14748 0.08280 (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.) t-value (b-2) Choose the correct option. Only FloorSpace differs significantly from zero. O Only Price differs significantly from zero. O Only CompetingAds differs significantly from zero.
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