Question
Refer to the ANOVA table for this regression. Source d.f. SS MS Regression 3 1,196,410 398,803 Error 26 379,332 14,590 Total 29 1,575,742 Obs Sales
Refer to the ANOVA table for this regression.
Source d.f. SS MS
Regression 3 1,196,410 398,803
Error 26 379,332 14,590
Total 29 1,575,742
Obs Sales FloorSpace CompetingAds Price 1 1015 72.9 102.2 1146 2 903 56.6 99.6 1261 3 1293 80.4 107.1 1408 4 1479 93.4 110.1 729 5 1413 84.5 93.5 1227 6 1207 69.8 95.6 966 7 999 77.4 102.5 1400 8 1172 75.3 94.8 1277 9 1110 75.5 101.0 1137 10 1270 63.6 95.5 954 11 1448 84.5 100.0 856 12 1327 74.6 110.4 892 13 910 60.4 98.2 1024 14 455 8.2 86.1 1028 15 1052 48.6 86.3 1170 16 1125 49.6 94.7 984 17 915 57.4 96.5 1200 18 1079 48.5 90.6 1725 19 1493 102.1 89.6 1588 20 885 55.2 101.1 1298 21 1069 56.0 96.8 1359 22 1220 76.8 99.8 1469 23 1124 59.2 111.1 480 24 1043 49.0 94.0 1435 25 1369 78.5 99.7 823 26 1244 59.4 98.2 1274 27 1361 100.0 104.7 1165 28 1421 76.3 85.5 1054 29 782 41.8 92.5 860 30 1210 65.2 93.1 895 (a) State the degrees of freedom for the Ftest for overall significance.
The degrees of freedom for regression are ? and for error ?
(b) Use Appendix F to look up the critical value of F for a=.05. (Round your answer to 2 decimal places.)
(c-1) Calculate the F statistic. Round your answer to 3 decimal places.)
F statistic ?
d) Calculate R 2 and R 2 adj. Round your answer 4 decimal places.)
R 2 ?
R 2 adj ?
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