Question: 1. From the output above report the value for bQ2. 2. Report the prediction for time 13 (Year = 4, and Quarter = 1) 3.Report

1. From the output above report the value for bQ2. 2. Report the prediction for time 13 (Year = 4, and Quarter = 1) 3.Report the prediction for time 15 (Year = 4, and Quarter = 3)

TABLE 17.7 Air Conditioner Sales and a Dummy Variable Regression Analysis of the Sales Data DS ACSales Year Quarter Sales Term Coef SE Coef T-Value P-Value 2,915 Constant 2624.5 100.4 26.15 0.000 S = 92.4244 T 382.82 34.03 11.25 0.000 R-Sq = 100.0% 8,032 TSq -11.354 2.541 -4.47 0.004 R-Sq(adj) = 99.9% 10.411 Q2 4629.74 76.08 60.86 0.000 2,427 Q3 6738.85 77.38 87.09 0.000 Q4 -1565.32 79.34 -19.73 0.000 2 4.381 9.138 Regression Equation AWN -AWN- AWN- 11,386 Sales = 2625 + 383 T - 11.4 TSq + 4630 Q2 + 6739 Q3 - 1565 Q4 3.382 Time Fit SE Fit 95% CI 95% PI 3 5,105 13 5682.4 112.6 ( 5406.9, 5957.9) ( 5325.9, 6038.8) 9.894 14 10388.4 142.8 (10039.0, 10737.8) ( 9972.2, 10804.6) 12.300 15 12551.0 177.2 (12117.4, 12984.7) (12061.9, 13040.2) 16 4277.7 213.9 ( 3754.4, 4801.1) ( 3707.6, 4847.8) 4.013

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