options crt; out qual; doc LQUAL "Mean of experts' creative device rating for ad"; doc LY1 "Log of real sales in 1971$ Canadian, Region 1"; doc LY2 "Log of real sales in 1971$ Canadian, Region 2"; doc LY3 "Log of real sales in 1971$ Canadian, Region 3"; doc LY4 "Log of real sales in 1971$ Canadian, Region 4"; doc LY5 "Log of real sales in 1971$ Canadian, Region 5"; doc DMR "Dummy variable for introduction of product reform"; doc PJF "Dummy for seasonal demand effect, 1 in January, February"; doc PND "Dummy for seasonal demand effect, 1 in November, December"; doc LPR1 "Log of product price divided by regional CPI, Region 1"; doc LPR2 "Log of product price divided by regional CPI, Region 2"; doc LPR3 "Log of product price divided by regional CPI, Region 3"; doc LPR4 "Log of product price divided by regional CPI, Region 4"; doc LPR5 "Log of product price divided by regional CPI, Region 5"; doc LADR1 "Log of real advertising outlay, Region 1"; doc LADR2 "Log of real advertising outlay, Region 2"; doc LADR3 "Log of real advertising outlay, Region 3"; doc LADR4 "Log of real advertising outlay, Region 4"; doc LADR5 "Log of real advertising outlay, Region 5"; ?TIMESPAN: September/October 1973 to July/August 1982, bimonthly ?Source: Data kindly provided by the authors. Article is Stephen ?J. Arnold, Tae H. Oum, Bohumir Pazderka and Douglas W. Snetsinger, ?"Advertising Quality in Sales Response Models," JOURNAL OF MARKETING ?RESEARCH, Vol. 24, No. 1, February 1987, pp. 105-113. ? Note: another way to handle these data is to use FREQ 6; ? and SMPL 73:5,82:4; ? But we'll do it by observation number, to follow the exercise ? instructions more easily. load; end; noprint; smpl 1,54; load @OBSNO LQUAL LY1 LY2 LY3 LY4 LY5 DMR PJF PND; 1 1.435085 14.75792 15.61442 15.72289 14.30267 14.28263 0 0 0 2 1.435085 14.28648 15.27948 15.26080 13.38473 13.83983 0 0 1 3 1.335001 14.82150 15.56324 15.54485 14.10127 14.29699 0 1 0 4 1.335001 14.80161 15.54621 15.49174 13.71271 14.07965 0 0 0 5 1.335001 14.40330 15.33317 15.24754 13.76070 13.99269 0 0 0 6 1.435085 14.82366 15.36895 15.33710 14.07551 14.33766 0 0 0 7 1.410987 14.59413 15.57646 15.69501 13.93067 13.98968 0 0 0 8 1.410987 14.36644 14.95941 14.75852 13.46976 13.90286 0 0 1 9 1.410987 14.55794 15.31765 15.28892 13.86552 14.11922 0 1 0 10 1.410987 14.57392 15.37079 15.24312 13.65148 13.98666 0 0 0 11 1.410987 14.60978 15.43363 15.55111 13.80053 14.13722 0 0 0 12 1.410987 14.57847 15.38519 15.39380 13.86210 14.14831 0 0 0 13 1.410987 14.61901 15.41650 15.44947 13.99355 13.93067 0 0 0 14 1.223775 14.26085 14.89879 14.70203 13.53226 13.45001 0 0 1 15 1.223775 14.47157 15.22562 15.31673 13.73324 13.95460 1 1 0 16 1.223775 14.51810 15.22136 15.37791 13.61956 13.98795 1 0 0 17 1.686399 14.39500 15.38038 15.47144 13.79688 13.91082 1 0 0 18 1.686399 14.53172 15.38209 15.42833 13.67595 14.14610 1 0 0 19 1.686399 14.46623 15.25425 15.38860 13.61518 13.96614 1 0 0 20 1.686399 14.20199 15.08195 15.16525 13.21627 13.82673 1 0 1 21 1.686399 14.47157 14.99582 15.41267 13.61706 13.97098 1 1 0 22 1.526056 14.23692 15.09245 15.22700 13.24662 13.74377 1 0 0 23 1.526056 14.45032 15.26442 15.33922 13.66469 13.90192 1 0 0 24 1.526056 14.46221 15.15482 15.19395 13.62702 13.82114 1 0 0 25 1.526056 14.35065 15.17346 15.24250 13.41158 13.79111 1 0 0 26 1.526056 14.07985 15.10721 15.02638 13.23294 13.64360 1 0 1 27 1.335001 14.06677 14.90950 15.03096 13.32499 13.58916 1 1 0 28 1.335001 14.62633 15.48099 15.55849 13.86112 14.17908 1 0 0 29 1.335001 14.23952 14.97734 14.94331 13.34181 13.65706 1 0 0 30 1.648659 14.34637 15.06574 15.06508 13.34797 13.71951 1 0 0 31 1.648659 14.31885 15.22669 15.17313 13.58222 13.69725 1 0 0 32 1.648659 14.08319 14.83380 14.96827 13.06945 13.49710 1 0 1 33 1.280934 14.18999 14.98918 14.98799 13.24526 13.57637 1 1 0 34 1.280934 14.33796 15.08603 15.15868 13.44779 13.74046 1 0 0 35 1.280934 14.48018 15.26125 15.26478 13.48487 13.87269 1 0 0 36 1.280934 14.33201 15.09345 15.16148 13.62733 13.78545 1 0 0 37 1.280934 14.35335 15.14156 15.27234 13.43717 13.77469 1 0 0 38 1.335001 14.11647 14.86296 15.01998 13.13308 13.44333 1 0 1 39 1.335001 14.19999 15.01106 14.87956 13.24798 13.66781 0 1 0 40 1.335001 14.32718 15.02482 15.10686 13.26413 13.65390 0 0 0 41 1.335001 14.33247 15.16448 15.18757 13.54461 13.78664 0 0 0 42 1.335001 14.57344 15.39781 15.46624 13.84320 14.04509 0 0 0 43 1.335001 14.54973 15.18317 15.19127 13.62779 13.79492 0 0 0 44 1.335001 14.24979 15.12030 15.19030 13.27078 13.70157 0 0 1 45 1.335001 14.26805 14.82638 14.82156 13.14488 13.68242 0 1 0 46 1.335001 14.47311 15.25971 15.22867 13.46497 13.82653 0 0 0 47 1.335001 14.51846 15.10079 15.19764 13.63270 13.86620 0 0 0 48 1.335001 14.37732 15.11867 15.15156 13.64189 13.75134 0 0 0 49 1.335001 14.45882 15.17688 15.23613 13.51149 13.78458 0 0 0 50 1.435085 14.29699 15.03484 15.08588 13.28553 13.67501 0 0 1 51 1.435085 14.43443 15.15439 15.23851 13.75232 13.90268 0 1 0 52 1.435085 14.55069 15.23338 15.22229 13.41664 13.85325 0 0 0 53 1.435085 14.66171 15.30068 15.27891 13.66290 13.85177 0 0 0 54 1.435085 14.54965 15.16130 15.30221 13.71152 13.96154 0 0 0 ; load @OBSN LPR1 LPR2 LPR3 LPR4 LPR5 ; 1 -2.43098 -2.43186 -2.42834 -2.42303 -2.42922 2 -2.43886 -2.43886 -2.43712 -2.44061 -2.43886 3 -2.45445 -2.45187 -2.45187 -2.45445 -2.45014 4 -2.47317 -2.46810 -2.47064 -2.47654 -2.46470 5 -2.50144 -2.49238 -2.49815 -2.49815 -2.48740 6 -2.42882 -2.41916 -2.42077 -2.42400 -2.41429 7 -2.28238 -2.26576 -2.26974 -2.26656 -2.25775 8 -2.16463 -2.12496 -2.19489 -2.22736 -2.17602 9 -2.17399 -2.15871 -2.16256 -2.16102 -2.14085 10 -2.18004 -2.16638 -2.17702 -2.17475 -2.15486 11 -2.19944 -2.17853 -2.18979 -2.18605 -2.16791 12 -2.22714 -2.21266 -2.21703 -2.21775 -2.19203 13 -2.24284 -2.22858 -2.22354 -2.23001 -2.20534 14 -2.24675 -2.22656 -2.21439 -2.24707 -2.19580 15 -2.27761 -2.26523 -2.27006 -2.25968 -2.26523 16 -2.30392 -2.27281 -2.27693 -2.26384 -2.27350 17 -2.32695 -2.28713 -2.28713 -2.27624 -2.28238 18 -2.33214 -2.29522 -2.29724 -2.28849 -2.29590 19 -2.34820 -2.30790 -2.30325 -2.29657 -2.30259 20 -2.31406 -2.32304 -2.27199 -2.28225 -2.25992 21 -2.36148 -2.33214 -2.32435 -2.32304 -2.31583 22 -2.37522 -2.35770 -2.34373 -2.34245 -2.33988 23 -2.32239 -2.30633 -2.29380 -2.28937 -2.29632 24 -2.33457 -2.31809 -2.30944 -2.30882 -2.30882 25 -2.34421 -2.33032 -2.31624 -2.31747 -2.31870 26 -2.39612 -2.37788 -2.37339 -2.28811 -2.28750 27 -2.39439 -2.38912 -2.37312 -2.36652 -2.36230 28 -2.44813 -2.44235 -2.42362 -2.42539 -2.41651 29 -2.18090 -2.17635 -2.15002 -2.15386 -2.13830 30 -2.19555 -2.19163 -2.17759 -2.17863 -2.15987 31 -2.20335 -2.19387 -2.17191 -2.17521 -2.16562 32 -2.21439 -2.21548 -2.19389 -2.18881 -2.18549 33 -2.22476 -2.22258 -2.20387 -2.20113 -2.19054 34 -2.24306 -2.24838 -2.22570 -2.22530 -2.21102 35 -2.25077 -2.22698 -2.22250 -2.16932 -2.22060 36 -2.26332 -2.24308 -2.23569 -2.18047 -2.23606 37 -2.27971 -2.27637 -2.27041 -2.22190 -2.24060 38 -2.25180 -2.27425 -2.28147 -2.22360 -2.26714 39 -2.19722 -2.25204 -2.27137 -2.17425 -2.25231 40 -2.21071 -2.24836 -2.28742 -2.14553 -2.24930 41 -2.23538 -2.26454 -2.29920 -2.15705 -2.25252 42 -2.14986 -2.16705 -2.14748 -2.15014 -2.24436 43 -2.16543 -2.18758 -2.16637 -2.16718 -2.26006 44 -2.18994 -2.20622 -2.17448 -2.17640 -2.25682 45 -2.10977 -2.18236 -2.17628 -2.16265 -2.18909 46 -2.16614 -2.15142 -2.15758 -2.12129 -2.10236 47 -2.12696 -2.16417 -2.18605 -2.14485 -2.10152 48 -2.14927 -2.18937 -2.17475 -2.12951 -2.12269 49 -2.16946 -2.16332 -2.18647 -2.14760 -2.10076 50 -2.12266 -2.15016 -2.16865 -2.16291 -2.12247 51 -2.13732 -2.12625 -2.10860 -2.11425 -2.05495 52 -2.11742 -2.15409 -2.13850 -2.10256 -2.07783 53 -2.10604 -2.13931 -2.12785 -2.12284 -2.07199 54 -2.14838 -2.18530 -2.14423 -2.10983 -2.05257 ; load @OBS LADR1 LADR2 LADR3 LADR4 LADR5 ; 1 9.137339 9.792698 10.46635 9.967514 9.250681 2 8.756972 9.543671 10.04044 9.843288 8.840652 3 9.084289 9.780582 10.15360 9.735142 8.727057 4 9.024857 9.493633 10.20744 9.851601 9.039677 5 8.891374 9.272661 9.77771 9.315077 8.485263 6 9.243238 9.626090 10.42865 9.896126 8.894837 7 9.641205 9.841202 10.14234 10.196540 9.149321 8 9.078715 9.633139 10.14395 9.801384 8.874142 9 9.051988 9.246280 9.99431 9.929487 8.783432 10 8.733726 9.261081 10.14902 9.960457 8.666626 11 8.385697 9.099231 9.89652 9.620499 8.478203 12 8.945319 9.348281 10.56728 9.857569 8.566197 13 9.046386 9.765024 10.42026 10.108940 9.188069 14 8.929942 9.411250 10.26339 9.877270 8.810779 15 9.007949 9.687190 10.29539 9.717646 9.048714 16 8.851210 9.683736 10.63502 9.662208 8.966874 17 9.170270 9.832787 10.66068 9.847902 9.172845 18 9.104201 9.722958 10.64183 9.553149 9.099671 19 9.355282 9.931765 10.68466 9.650878 9.424275 20 9.247428 9.869432 10.29430 9.771116 9.233807 21 8.881135 9.616986 10.01493 9.608782 8.690040 22 9.017805 9.831316 10.01377 9.601652 9.013454 23 9.321897 10.160740 10.33884 9.882403 9.440931 24 9.273557 9.866038 10.26897 9.801534 9.529634 25 8.724476 8.730568 9.30696 9.677098 7.464683 26 7.158645 8.237247 9.09945 10.053770 7.821114 27 9.159080 10.278970 10.36027 10.372300 9.314368 28 9.869660 10.270190 10.79471 9.893735 7.899277 29 8.284036 9.706604 9.94158 7.531845 4.506230 30 0.000000 9.226909 0.00000 0.000000 0.000000 31 0.000000 10.019770 0.00000 0.000000 0.000000 32 6.253205 9.165847 4.32050 5.156818 0.000000 33 7.487071 9.619148 8.37922 8.407129 7.179906 34 9.369965 9.883658 9.97713 10.498510 9.177875 35 9.216219 9.465233 9.15158 9.895390 8.929678 36 8.619046 9.285507 9.03042 9.962231 8.310462 37 8.517944 9.120074 9.27714 9.670025 8.535068 38 9.012814 9.253697 9.37212 9.733846 9.070981 39 8.661018 9.543073 9.15875 9.630900 8.444572 40 8.632172 9.501902 10.21896 9.178382 8.414426 41 8.846867 9.631360 10.14582 9.769228 8.707966 42 8.496269 7.603842 9.87555 9.073636 7.822081 43 9.039015 9.834288 10.26472 9.947073 8.676417 44 8.731799 9.834359 9.75664 9.583146 8.616549 45 8.209750 9.657810 9.44501 9.316242 8.015503 46 9.162473 9.467073 9.86664 9.833239 8.561733 47 8.314288 9.694302 10.12055 9.786979 8.353471 48 8.994723 8.713046 9.77268 9.880286 7.527396 49 9.056386 10.224600 10.47434 10.244840 9.636267 50 8.894063 10.076870 10.30720 9.816817 9.064866 51 8.315433 9.438158 10.08441 9.339445 8.590014 52 8.836475 9.470772 9.89964 9.343601 7.972200 53 9.057867 8.856221 9.93655 9.252928 8.174177 54 8.857021 9.936467 10.31879 9.722327 8.654266