question 4 - Sheet1 Sales Direct Radio 15.98 21.59 25.47...

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Sheet1 Page 1 Sales Direct Radio Newspaper Television 15.98 1.05 1.15 1.35 1.55 21.59 1.29 1.19 2.25 1.97 25.47 0.96 1.75 1.79 1.64 16.02 1.51 1.01 1.73 1.73 16.58 1.30 1.68 1.71 1.61 20.10 1.06 1.72 1.61 1.82 17.49 0.86 1.72 1.62 1.97 22.53 0.78 1.55 2.20 1.61 23.98 1.20 1.97 1.77 1.13 18.96 0.83 1.64 1.17 1.77 24.64 1.01 1.73 1.76 2.04 19.52 1.34 1.61 1.81 1.63 19.97 0.55 0.55 2.25 1.93 18.86 1.06 1.06 1.98 1.63 22.79 0.90 0.90 1.54 2.27 20.38 1.88 1.88 1.15 1.45 16.51 0.51 0.51 1.19 1.93 18.32 0.53 0.53 1.75 1.44 16.04 1.21 1.59 1.01 1.46 18.91 0.90 1.42 1.68 1.66 20.09 0.97 2.05 1.72 1.59 19.83 1.01 1.06 1.72 1.42 18.42 1.29 0.86 1.47 2.05 21.99 1.35 0.78 1.94 2.28 20.57 1.07 1.20 2.31 1.77 SUMMARY OUTPUT Regression Statistics Multiple R 0.6096230123 R Square 0.3716402171 Adjusted R Square 0.2459682606 Standard Error 2.3425551243 Observations 25 ANOVA df SS MS F Significance F Regression 4 64.9118457911 16.227961 2.957225 0.0452579252 Residual 20 109.751290209 5.4875645 Total 24 174.663136 Coefficients Standard Error t Stat P-value Lower 95% Intercept 6.5270829006 4.9041206379 1.3309385 0.198184 -3.702733491 X Variable 1 -0.790293327 1.6600416504 -0.4760684 0.639185 -4.2530795305 X Variable 2 2.8491265822 1.2024526352 2.3694294 0.02799 0.340854338 X Variable 3 3.5739005505 1.3975945908 2.5571797 0.018784 0.65856932 X Variable 4 2.4703252747 1.9190305091 1.2872777 0.212696 -1.5327022213
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Sheet1 Page 2 RESIDUAL OUTPUT Observation Predicted Y Residuals 1 17.627540396 -1.6475403959 2 21.805882172 -0.2158821716 3 21.202988262 4.2670117384 4 18.667868503 -2.6478685027 5 20.374827867 -3.7948278674 6 20.839841582 -0.7398415818 7 21.404188044 -3.9141880439 8 22.166605211 0.3633947886 9 20.30878181 3.6712181899 10 19.097646414 -0.1376464145 11 21.987404157 2.652595843 12 20.550573834 -1.0305738341 13 20.46844521 -0.4984452099 14 19.812399439 -0.952399439 15 19.491478052 3.2985219482 16 18.089646702 2.290353298 17 16.597757296 -0.0877572962 18 17.429858885 0.8901411151 19 17.317253698 -1.2772536979 20 19.966471534 -1.056471534 21 21.676134001 -1.5861340007 22 18.403931655 1.4260683455 23 18.275653992 0.1443460079 24 20.248214338 1.7417856622 25 21.728606947 -1.1586069474 Radio and Newspaper only SUMMARY OUTPUT Regression Statistics Multiple R 0.5602661034 R Square 0.3138981066 Adjusted R Square 0.2515252072 Standard Error 2.3339072615
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