Econometrics-I-5

Standard deviation =.9429722 | | number of observs =

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Unformatted text preview: Standard deviation = .9429722 | | Number of observs. = 62 | | Residuals Sum of squares = 20.54972 | | Standard error of e = .6475971 | | Fit R-squared = .6211405 | | Adjusted R-squared = .5283586 | +----------------------------------------------------+ +--------+--------------+----------------+--------+--------+----------+ |Variable| Coefficient | Standard Error |t-ratio |P[|T|>t]| Mean of X| +--------+--------------+----------------+--------+--------+----------+ |Constant| 12.5388*** .98766 12.695 .0000 | |LOGBUDGT| .23193 .18346 1.264 .2122 3.71468| |STARPOWR| .00175 .01303 .135 .8935 18.0316| |SEQUEL | .43480 .29668 1.466 .1492 .14516| |MPRATING| -.26265* .14179 -1.852 .0700 2.96774| |ACTION | -.83091*** .29297 -2.836 .0066 .22581| |COMEDY | -.03344 .23626 -.142 .8880 .32258| |ANIMATED| -.82655** .38407 -2.152 .0363 .09677| |HORROR | .33094 .36318 .911 .3666 .09677| 4 INTERNET BUZZ VARIABLES |LOGADCT | .29451** .13146 2.240 .0296 8.16947| |LOGCMSON| .05950 .12633 .471 .6397 3.60648| |LOGFNDGO| .02322 .11460 .203 .8403 5.95764| |CNTWAIT3| 2.59489*** .90981 2.852 .0063 .48242| +--------+------------------------------------------------------------+ ˜˜˜™™ ™ 20/33 Part 5: Regression Algebra and Fit +----------------------------------------------------+ | Ordinary least squares regression | | LHS=LOGBOX Mean = 16.47993 | | Standard deviation = .9429722 | | Number of observs. = 62 | | Residuals Sum of squares = 25.36721 | | Standard error of e = .6984489 | | Fit R-squared = .5323241 | | Adjusted R-squared = .4513802 | +----------------------------------------------------+ +--------+--------------+----------------+--------+--------+----------+ |Variable| Coefficient | Standard Error |t-ratio |P[|T|>t]| Mean of X| +--------+--------------+----------------+--------+--------+----------+ |Constant| 11.9602*** .91818 13.026 .0000 | |LOGBUDGT| .38159** .18711 2.039 .0465 3.71468| |STARPOWR| .01303 .01315 .991 .3263 18.0316| |SEQUEL | .33147 .28492 1.163 .2500 .14516| |MPRATING| -.21185 .13975 -1.516 .1356 2.96774| |ACTION | -.81404** .30760 -2.646 .0107 .22581| |COMEDY | .04048 .25367 .160 .8738 .32258| |ANIMATED| -.80183* .40776 -1.966 .0546 .09677| |HORROR | .47454 .38629 1.228 .2248 .09677| |PCBUZZ | .39704*** .08575 4.630 .0000 9.19362| +--------+------------------------------------------------------------+ ˜˜˜™™ ™ 21/33 Part 5: Regression Algebra and Fit Adjusted R Squared p Adjusted R2 (for degrees of freedom?) = 1 - [(n-1)/(n-K)](1 - R2) p Degrees of freedom” adjustment suggests something about “unbiasedness.” The ratio is not unbiased. p includes a penalty for variables that don’t add much fit. Can fall when a variable is added to the equation....
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Standard deviation =.9429722 | | Number of observs = 62 | |...

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