Ödev B4.1 Aşağıdaki model,kampanya harcamalarının seçim sonuçlarını etkileyip etkilemediğini incelemek için yapılan bir çalışmada kullanılabilir.

\[voteavoteA=\beta_0+\beta_1log(expendA)+\beta_2log(expendB)+\beta_3prtystrA+u\] Burada voteA aday A tarafından alınan oy oranı ,expendA ve expendB aday A ve B tarafından yapılan kampanya harcamaları ve prtsyrA ise aday A için parti gücünün bir ölçüsüdür(A’nın partisine en son başkanlık seçimine giden oy oranı).

β1 ’in yorumu nedir?

Herşeyin eşit olduğunda A adayının yağtığı harcamalardaki artışın A adayının oy oranını arttırabilmesidir. β1 esnekliği pozitifdir.

A’nın harcamalarında ki %1’lik artışın B’nin harcamalarında ki %1’lik artışla dengelendiği hipotezini parametreler cinsinden ifade ediniz

\[voteavoteA=\beta_0+\beta_1log(1)+\beta_2log(1)+\beta_3prtystrA+u\]

Verilen modeli VOTE1.RAW’daki verileri kullanarak tahmin ediniz ve sonuçları her zamanki formda rapor ediniz.A’nın harcamaları sonucu etkiler mi? Ya B’nin harcamaları ? Bu sonuçları 2.sorudaki hipotezi test etmek için kullanabilir misiniz ?

library(wooldridge)
data("vote1")
head(vote1,1-20)
##     state district democA voteA  expendA  expendB prtystrA   lexpendA
## 1      AL        7      1    68  328.296    8.737       41  5.7939157
## 2      AK        1      0    62  626.377  402.477       60  6.4399524
## 3      AZ        2      1    73   99.607    3.065       55  4.6012325
## 4      AZ        3      0    69  319.690   26.281       64  5.7673516
## 5      AR        3      0    75  159.221   60.054       66  5.0702929
## 6      AR        4      1    69  570.155   21.393       46  6.3459082
## 7      CA        2      0    59  696.748  193.915       58  6.5464239
## 8      CA        3      1    71  638.688    7.695       49  6.4594159
## 9      CA        5      1    76  616.936   19.245       71  6.4247651
## 10     CA        6      1    73  351.687   50.532       64  5.8627415
## 11     CA        7      1    68  269.887   14.710       53  5.5980034
## 12     CA       11      1    71  269.510   95.575       58  5.5966053
## 13     CA       12      0    52 1440.639 1089.570       49  7.2728419
## 14     CA       16      1    79  252.336   69.563       54  5.5307617
## 15     CA       19      0    50 1470.674 1548.193       54  7.2934761
## 16     CA       23      1    64  140.486  100.956       56  4.9451079
## 17     CA       24      1    72  191.334   15.449       65  5.2540207
## 18     CA       27      1    68  398.597   15.239       54  5.9879508
## 19     CA       30      1    60  460.622  382.111       53  6.1325779
## 20     CA       32      1    67  457.410   20.608       49  6.1255803
## 21     CA       34      1    63  227.098  149.886       50  5.4253817
## 22     CA       36      1    54  532.897  218.696       47  6.2783279
## 23     CA       37      0    64  122.839   13.558       68  4.8108745
## 24     CA       40      0    67 1110.126   47.746       68  7.0122290
## 25     CA       42      0    64  494.487   11.889       65  6.2035208
## 26     CO        1      1    70  217.503   26.040       61  5.3822126
## 27     CO        2      1    63  721.647   85.095       50  6.5815363
## 28     CO        3      1    78  482.789   17.936       46  6.1795797
## 29     CO        5      0    75  183.229    0.930       67  5.2107368
## 30     CO        6      0    63  636.204  489.303       57  6.4555192
## 31     CT        2      1    64  727.919  246.903       49  6.5901899
## 32     CT        4      0    72  372.680   44.410       57  5.9207201
## 33     CT        6      0    66  399.370  128.853       53  5.9898882
## 34     DE        1      1    68  371.747  184.712       43  5.9182134
## 35     FL        1      1    67  210.940   23.912       27  5.3515739
## 36     FL        4      0    50  313.415 1069.699       36  5.7475281
## 37     FL        6      0    54  408.292  503.654       61  6.0119824
## 38     FL       14      1    55  971.883  777.988       47  6.8792353
## 39     FL       19      1    72  337.596    4.907       41  5.8218498
## 40     GA        1      1    67  337.048   40.461       39  5.8202252
## 41     GA        4      1    60  516.737  696.301       41  6.2475343
## 42     GA        5      1    78  101.540    6.047       68  4.6204529
## 43     GA        6      0    59  838.708  358.354       67  6.7318625
## 44     GA        7      1    65  382.281   60.694       29  5.9461560
## 45     GA        9      1    63  405.040   64.400       29  6.0039859
## 46     GA       10      1    64  193.123    6.760       35  5.2633271
## 47     ID        2      1    63  502.083  206.960       33  6.2187653
## 48     IL        4      1    50  359.942  348.339       44  5.8859429
## 49     IL        5      1    61  165.144   48.940       48  5.1068177
## 50     IL        6      0    74  281.229   26.555       68  5.6391692
## 51     IL        9      1    66  122.900   28.324       61  4.8113708
## 52     IL       11      1    65  239.158   41.259       46  5.4771242
## 53     IL       17      1    65  471.233  124.133       53  6.1553526
## 54     IL       19      1    64  193.205   16.241       45  5.2637520
## 55     IL       20      1    69  251.634   57.708       49  5.5279756
## 56     IL       21      1    53  394.412   69.486       54  5.9773960
## 57     IN        2      1    53  444.422  332.880       35  6.0967746
## 58     IN        5      1    56  689.086  244.985       35  6.5353661
## 59     IN        6      0    73  333.723   11.743       69  5.8103113
## 60     IN        8      1    62  551.484  130.243       42  6.3126130
## 61     IN       10      1    61   35.786   24.919       51  3.5775568
## 62     IA        5      0    64  420.730  115.701       47  6.0419912
## 63     IA        6      0    64  523.108  175.951       50  6.2597880
## 64     KS        2      1    73  388.866  119.263       46  5.9632349
## 65     KS        3      0    74  234.583   13.483       54  5.4578094
## 66     KS        4      1    64  545.755  149.035       43  6.3021703
## 67     KY        2      1    61    8.397   84.102       41  2.1278746
## 68     KY        3      1    70  371.431    4.931       53  5.9173632
## 69     KY        4      0    74  468.870   23.636       65  6.1503253
## 70     KY        7      1    59  411.699  432.403       55  6.0202923
## 71     ME        2      0    66  202.317   68.390       55  5.3098359
## 72     MD        3      1    73  354.701   18.893       54  5.8712749
## 73     MA        4      1    60  343.097   34.368       57  5.8380132
## 74     MA        5      1    84  344.930   15.396       47  5.8433414
## 75     MA        6      1    70  337.199   63.013       50  5.8206735
## 76     MA       10      1    67  235.946  121.056       51  5.4636030
## 77     MI        2      0    54  876.779  750.493       58  6.7762551
## 78     MI        3      1    57  600.940  164.856       45  6.3984952
## 79     MI        4      0    71  323.829    8.577       63  5.7802157
## 80     MI        7      1    76  150.594    1.310       55  5.0145874
## 81     MI        8      1    72  128.400    2.188       50  4.8551502
## 82     MI        9      0    70  450.801   14.866       62  6.1110258
## 83     MI       11      0    60  680.819  415.660       52  6.5232964
## 84     MI       12      1    54  434.200  143.886       39  6.0735054
## 85     MI       14      1    63  137.560    3.537       44  4.9240603
## 86     MI       15      1    64  234.435    7.993       45  5.4571781
## 87     MI       18      1    23    9.459   77.103       30  2.2469666
## 88     MN        2      1    42  152.295  623.776       49  5.0258193
## 89     MN        4      0    28   35.789  216.172       39  3.5776405
## 90     MN        5      0    28   16.915  281.455       35  2.8282008
## 91     MN        6      0    35  100.941  320.219       49  4.6145363
## 92     MN        8      0    25    7.743  157.802       40  2.0467892
## 93     MO        3      0    37  202.524  512.206       53  5.3108582
## 94     MO        6      1    41  198.617  341.344       50  5.2913785
## 95     MO        7      1    47  215.064  338.125       39  5.3709354
## 96     MO        8      1    42  516.239  768.792       45  6.2465696
## 97     MO        9      0    32    9.565  210.841       55  2.2581105
## 98     MT        1      0    39   58.204  250.276       52  4.0639539
## 99     MT        2      1    45  394.102  380.928       46  5.9766097
## 100    NE        1      1    33   96.278  221.530       44  4.5672398
## 101    NE        2      0    49 1158.294  858.762       58  7.0547032
## 102    NV        1      0    36  147.891  652.199       58  4.9964757
## 103    NJ        3      0    48  981.865  678.647       63  6.8894539
## 104    NJ        4      1    34   53.964  252.823       45  3.9883173
## 105    NJ        6      0    38   38.919  123.632       54  3.6614826
## 106    NJ        9      0    32   57.260  403.059       54  4.0476022
## 107    NM        1      1    49  576.677  559.134       46  6.3572822
## 108    NM        3      0    27   41.669  267.633       46  3.7297573
## 109    NY        3      0    43   90.892  364.087       60  4.5096722
## 110    NY        5      1    35   35.627  337.792       44  3.5731037
## 111    NY       15      1    39  162.157  602.942       67  5.0885649
## 112    NY       17      0    16    2.851  170.567       22  1.0476699
## 113    NY       22      1    29   10.427  411.056       43  2.3443985
## 114    NY       23      0    38  174.790  273.505       44  5.1635852
## 115    NY       24      1    28   15.936  151.276       42  2.7685807
## 116    NY       27      1    43  645.123  594.965       48  6.4694409
## 117    NY       30      0    43  310.704  802.886       55  5.7388406
## 118    NY       31      1    47  453.462  688.382       44  6.1169114
## 119    NC        1      0    35   16.758   82.147       54  2.8188758
## 120    NC        4      0    42  745.726 1006.641       56  6.6143584
## 121    NC        5      0    47  718.015  756.115       60  6.5764904
## 122    NC        6      1    38  583.013  738.088       39  6.3682094
## 123    NC        8      0    48  242.782  581.888       62  5.4921641
## 124    NC       10      1    39   44.329  302.215       35  3.7916391
## 125    ND        1      0    29    1.154  143.210       57  0.1432342
## 126    OH        2      1    28   13.961  125.682       38  2.6362677
## 127    OH        6      1    26   43.485  884.754       36  3.7724161
## 128    OH        9      0    19   47.945  244.030       47  3.8700545
## 129    OH       11      0    38  860.766  561.070       56  6.7578225
## 130    OH       14      0    25   13.244  419.005       48  2.5835447
## 131    OH       15      1    25    6.682  211.963       38  1.8994174
## 132    OH       17      0    23    2.391   96.003       38  0.8717117
## 133    OH       19      0    30    0.522  226.086       55 -0.6500877
## 134    OK        1      1    48  253.585  484.585       39  5.5356989
## 135    OK        2      0    35   81.634  358.705       53  4.4022460
## 136    OK        5      1    28    0.302  318.822       33 -1.1973283
## 137    OR        4      0    28   58.563  279.809       46  4.0701032
## 138    PA        1      0    24    1.643  234.957       34  0.4965239
## 139    PA        3      0    37   23.101  250.480       52  3.1398759
## 140    PA        6      0    37   12.002  121.435       62  2.4850733
## 141    PA        7      1    32  203.582  507.360       40  5.3160686
## 142    PA        8      0    43  507.682 1089.612       62  6.2298551
## 143    PA       13      1    33   60.672  225.412       44  4.1054821
## 144    PA       15      1    43  355.016  752.332       45  5.8721628
## 145    PA       23      1    38  106.463  336.675       44  4.6677976
## 146    RI        1      1    44  801.289  385.402       58  6.6862216
## 147    SC        1      1    36   82.035  118.702       39  4.4071460
## 148    SC        3      0    46  354.575  641.429       67  5.8709197
## 149    SC        4      0    48  630.913 1143.351       68  6.4471679
## 150    SD        1      0    28  199.420  632.105       53  5.2954130
## 151    TN        6      0    24   12.623  454.346       61  2.5355206
## 152    TX        1      0    38   94.477  505.611       53  4.5483565
## 153    TX        5      0    39  179.201  646.218       50  5.1885080
## 154    TX        6      1    32   17.414  654.260       38  2.8572745
##        lexpendB      shareA
## 1    2.16756701 97.40766907
## 2    5.99763775 60.88103867
## 3    1.12004757 97.01476288
## 4    3.26884627 92.40370178
## 5    4.09524441 72.61247253
## 6    3.06306386 96.38355255
## 7    5.26741982 78.22801971
## 8    2.04057074 98.80953217
## 9    2.95725131 96.97491455
## 10   3.92260695 87.43669128
## 11   2.68852758 94.83129120
## 12   4.55991125 73.82116699
## 13   6.99353838 56.93754959
## 14   4.24223280 78.38980865
## 15   7.34484386 48.71609116
## 16   4.61468458 58.18622971
## 17   2.73754430 92.52888489
## 18   2.72385788 96.31762695
## 19   5.94571114 54.65811920
## 20   3.02567935 95.68886566
## 21   5.00987482 60.24075317
## 22   5.38768244 70.90233612
## 23   2.60697675 90.05989838
## 24   3.86589527 95.87640381
## 25   2.47561359 97.65213776
## 26   3.25963378 89.30784607
## 27   4.44376850 89.45201874
## 28   2.88680983 96.41799164
## 29  -0.07257068 99.49500275
## 30   6.19298172 56.52599335
## 31   5.50899553 74.67198944
## 32   3.79346466 89.35241699
## 33   4.85867214 75.60632324
## 34   5.21879768 66.80581665
## 35   3.17438054 89.81826782
## 36   6.97513247 22.66009903
## 37   6.22188950 44.77151108
## 38   6.65671110 55.54026413
## 39   1.59066272 98.56731415
## 40   3.70033860 89.28211212
## 41   6.54578209 42.59858322
## 42   1.79956222 94.37943268
## 43   5.88152122 70.06387329
## 44   4.10584497 86.29854584
## 45   4.16511345 86.28152466
## 46   1.91102290 96.61801910
## 47   5.33252573 70.81136322
## 48   5.85317612 50.81909561
## 49   3.89059496 77.13981628
## 50   3.27921796 91.37219238
## 51   3.34370947 81.27017212
## 52   3.71986914 85.28655243
## 53   4.82135344 79.15013885
## 54   2.78753877 92.24573517
## 55   4.05539560 81.34491730
## 56   4.24112511 85.02127838
## 57   5.80778217 57.17494583
## 58   5.50119686 73.77233887
## 59   2.46325731 96.60082245
## 60   4.86940193 80.89514160
## 61   3.21563053 58.95066452
## 62   4.75100946 78.43133545
## 63   5.17020559 74.83030701
## 64   4.78133106 76.52899170
## 65   2.60142970 94.56475067
## 66   5.00418139 78.54963684
## 67   4.43203020  9.07793617
## 68   1.59554183 98.68982697
## 69   3.16277099 95.20087433
## 70   6.06935787 48.77360916
## 71   4.22522640 74.73652649
## 72   2.93879151 94.94290924
## 73   3.53712583 90.89505005
## 74   2.73410773 95.72720337
## 75   4.14334106 84.25509644
## 76   4.79625320 66.09095001
## 77   6.62073040 53.88029861
## 78   5.10507250 78.47259521
## 79   2.14908409 97.41972351
## 80   0.27002710 99.13761139
## 81   0.78298789 98.32450104
## 82   2.69907665 96.80758667
## 83   6.02986765 62.09138489
## 84   4.96902132 75.10993195
## 85   1.26327884 97.49321747
## 86   2.07856607 96.70294189
## 87   4.34514236 10.92742920
## 88   6.43579149 19.62384796
## 89   5.37607431 14.20418549
## 90   5.63997269  5.66913605
## 91   5.76900530 23.96737671
## 92   5.06134129  4.67727661
## 93   6.23872709 28.33573151
## 94   5.83289099 36.78358078
## 95   5.82341576 38.87712860
## 96   6.64482021 40.17327118
## 97   5.35110426  4.33972168
## 98   5.52256441 18.86799622
## 99   5.94261026 50.84990311
## 100  5.40055799 30.29438782
## 101  6.75549173 57.42498016
## 102  6.48034954 18.48429871
## 103  6.52010107 59.13025665
## 104  5.53268957 17.59005737
## 105  4.81730938 23.94264221
## 106  5.99908304 12.43920135
## 107  6.32638931 50.77226639
## 108  5.58961678 13.47194672
## 109  5.89739275 19.97718811
## 110  5.82243013  9.54075623
## 111  6.40182114 21.19425201
## 112  5.13912821  1.64400482
## 113  6.01872969  2.47388458
## 114  5.61132002 38.98995209
## 115  5.01910591  9.53041840
## 116  6.38850260 52.02235794
## 117  6.68821287 27.90111542
## 118  6.53434372 39.71313095
## 119  4.40851021 16.94353485
## 120  6.91437435 42.55535507
## 121  6.62819338 48.70771408
## 122  6.60406303 44.13084412
## 123  6.36627817 29.43989563
## 124  5.71113873 12.79174042
## 125  4.96431208  0.79936981
## 126  4.83375502  9.99763489
## 127  6.78530979  4.68467712
## 128  5.49729109 16.42092896
## 129  6.32984591 60.53905106
## 130  6.03788280  3.06397247
## 131  5.35641193  3.05609894
## 132  4.56437922  2.43002319
## 133  5.42091560  0.23035431
## 134  6.18329287 34.35319519
## 135  5.88250017 18.53889465
## 136  5.76463270  0.09463501
## 137  5.63410711 17.30728149
## 138  5.45940256  0.69441986
## 139  5.52337885  8.44393158
## 140  4.79937935  8.99450684
## 141  6.22922087 28.63552856
## 142  6.99357700 31.78388214
## 143  5.41792965 21.20775604
## 144  6.62317753 32.06002045
## 145  5.81911802 24.02479553
## 146  5.95428705 67.52296448
## 147  4.77661610 40.86690521
## 148  6.46369839 35.59975433
## 149  7.04171848 35.55913544
## 150  6.44905567 23.98244476
## 151  6.11885881  2.70317841
## 152  6.22576761 15.74385834
## 153  6.47113705 21.71030426
## 154  6.48350477  2.59262848
coklureg <- lm(voteA~ expendA+expendB+prtystrA,data=vote1)
summary(coklureg)
## 
## Call:
## lm(formula = voteA ~ expendA + expendB + prtystrA, data = vote1)
## 
## Residuals:
##     Min      1Q  Median      3Q     Max 
## -26.661  -8.385   0.362   8.536  30.814 
## 
## Coefficients:
##              Estimate Std. Error t value Pr(>|t|)    
## (Intercept) 33.267190   4.416784   7.532 2.87e-12 ***
## expendA      0.034924   0.003369  10.365  < 2e-16 ***
## expendB     -0.034924   0.003001 -11.636  < 2e-16 ***
## prtystrA     0.342514   0.087952   3.894 0.000142 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 11.12 on 169 degrees of freedom
## Multiple R-squared:  0.5687, Adjusted R-squared:  0.561 
## F-statistic: 74.27 on 3 and 169 DF,  p-value: < 2.2e-16

\[voteavoteA=\beta_0+\beta_1log(1)+\beta_2log(1)+\beta_3prtystrA+u\]

\[voteavoteA=33.267+0.035log(1)+(-0.035)log(1)+0343prtystrA+u\] Buna göre A ve B’nin yaptığı harcamalar sonucu aynı oranda etkiler.

2.sorudaki hipotezi test etmek için t istatistiğini doğrudan veren bir model tahmin ediniz.Ne sonuca varırsınız?(iki taraflı alternatif kullanınız)

reg <- lm(log(voteA)~ expendA+expendB+prtystrA,data=vote1)
summary(reg)
## 
## Call:
## lm(formula = log(voteA) ~ expendA + expendB + prtystrA, data = vote1)
## 
## Residuals:
##      Min       1Q   Median       3Q      Max 
## -0.72557 -0.15588  0.01689  0.19425  0.67449 
## 
## Coefficients:
##               Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  3.431e+00  9.919e-02  34.597  < 2e-16 ***
## expendA      7.985e-04  7.567e-05  10.553  < 2e-16 ***
## expendB     -6.769e-04  6.740e-05 -10.044  < 2e-16 ***
## prtystrA     7.776e-03  1.975e-03   3.937  0.00012 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.2497 on 169 degrees of freedom
## Multiple R-squared:  0.5437,    Adjusted R-squared:  0.5356 
## F-statistic: 67.11 on 3 and 169 DF,  p-value: < 2.2e-16
qt (0.01,169)
## [1] -2.348615