Appliance Center sells a variety of electronic equipment and home appliances. Fo

Question

Appliance Center sells a variety of electronic equipment and home appliances. For the last 4 years, 2010 through 2013, the following quarterly sales (in $ millions) were reported.

Use the seasonal indexes you computed to determine the deseasonalized sales. Determine the linear trend equation based on the quarterly data for the 4 years. Forecast the seasonally adjusted sales for 2014. (Negative answers should be indicated by minus sign. Round your answers to 3 decimal places.)

Quarter Year I II III IV 2010 5.3 4.3 6.8 6.5 2011 4.7 3.7 5.2 6.3 2012 4.1 3.5 5.8 6.6 2013 5.6 4.8 6.4 5.9

Explanation / Answer

Y^ =5.387445122 -0.003507314 *t

SUMMARY OUTPUT Regression Statistics Multiple R 0.028848634 R Square 0.000832244 Adjusted R Square -0.070536882 Standard Error 0.598885878 Observations 16 ANOVA df SS MS F Significance F Regression 1 0.004182426 0.004182 0.011661 0.915539 Residual 14 5.021300132 0.358664 Total 15 5.025482558 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept 5.387445122 0.314058404 17.15428 8.52E-11 4.713857 6.061033 4.713857 6.061033 t -0.003507314 0.032479147 -0.10799 0.915539 -0.07317 0.066154 -0.07317 0.066154

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