Managers at Gibson have collected sales data for the past 20

Managers at Gibson have collected sales data for the past 20 years showing the number of trucks sold each year. They have then developed the linear trend forecasting model shown in the accompanying table. Based on this information, it appears that the number of trucks sold has been growing by about 20.17 units per year. Click on the icon to view the data Data Table O True O False SUMMARY OUTPU Multiple R R Square Adjusted R S Standard Erro Observations 0 976611927 0.953770056 0.95120257 26.9907376 20 ANOVA MS ance F Residual Total 1270539.2015 270539.2 371.3648 183E-13 8 13112 9985 728.4999 19 283652 2 Coefficients Standard Emor tStat P-value Lower 95%Ler95% 8.91578947 12 53804664 6294106 6.21E -06 52 57431 105 2573 20.16992481 1.046655911 19 27083 1.83E-13 17 97098 22 36887 Interce Print Done

Solution

The year has coefficient of 20.17. Also slope is statistically significant. Hence we can say that number of trucks has been increasing at 20.17 units every year.