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,rank,salary,cost,LSAT,GPA,libvol,faculty,age,clsize,north,south,east,west,lsala

ID: 3368662 • Letter: #

Question

,rank,salary,cost,LSAT,GPA,libvol,faculty,age,clsize,north,south,east,west,lsalary,studfac,top10,r11_25,r26_40,r41_60,llibvol,lcost
0,128,31400.0,8340.0,155.0,3.15,216,45.0,12.0,210.0,1,0,0,0,10.354563,4.6666665,0,0,0,0,5.3752785,9.028818
1,104,33098.0,6980.0,160.0,3.5,256,44.0,113.0,190.0,0,1,0,0,10.407228,4.318182,0,0,0,0,5.5451775,8.850804
2,34,32870.0,16370.0,155.0,3.25,424,78.0,134.0,270.0,0,0,1,0,10.400315,3.4615386,0,0,1,0,6.0497336,9.703206
3,49,35000.0,17566.0,157.0,3.2,329,136.0,89.0,277.0,0,0,1,0,10.463103,2.0367646,0,0,0,1,5.7960577,9.773721
4,95,33606.0,8350.0,162.0,3.38,332,56.0,70.0,150.0,0,0,0,1,10.42246,2.6785715,0,0,0,0,5.805135,9.030017
5,98,31700.0,8350.0,161.0,3.4,311,40.0,29.0,156.0,0,0,0,1,10.364072,3.9,0,0,0,0,5.739793,9.030017
6,124,30410.0,6020.0,155.0,3.16,220,40.0,61.0,151.0,0,1,0,0,10.322527,3.775,0,0,0,0,5.3936276,8.702843
7,157,30150.0,5986.0,152.0,3.12,230,45.0,60.0,149.0,0,1,0,0,10.31394,3.3111112,0,0,0,0,5.4380794,8.697179
8,145,31300.0,4785.0,155.0,3.12,230,101.0,70.0,322.0,0,0,1,0,10.351374,3.1881187,0,0,0,0,5.4380794,8.473241
9,91,33200.0,7680.0,160.0,3.66,157,44.0,128.0,70.0,0,1,0,0,10.410305,1.5909091,0,0,0,0,5.056246,8.946375
10,50,34900.0,17720.0,165.0,3.55,320,78.0,56.0,269.0,0,0,1,0,10.460242,3.4487178,0,0,0,1,5.768321,9.782449
11,23,55413.0,16160.0,163.0,3.42,470,128.0,115.0,381.0,0,0,1,0,10.922569,2.9765625,0,1,0,0,6.152733,9.690294
12,78,33750.0,6300.0,162.0,3.6,330,48.0,,153.0,0,0,0,1,10.426736,3.1875,0,0,0,0,5.799093,8.748305
13,5,65000.0,11387.0,167.0,3.7,600,80.0,,269.0,0,0,0,1,11.082143,3.3625,1,0,0,0,6.3969297,9.340228
14,27,,12058.0,164.0,3.45,371,38.0,20.0,160.0,0,0,0,1,,4.2105265,0,0,1,0,5.916202,9.397484
15,19,62000.0,12478.0,163.0,3.55,542,114.0,107.0,419.0,0,0,0,1,11.034889,3.6754386,0,1,0,0,6.295266,9.431723
16,13,63000.0,12202.0,165.0,3.57,470,96.0,,350.0,0,0,0,1,11.05089,3.6458333,0,1,0,0,6.152733,9.409355
17,115,31300.0,15700.0,156.0,3.2,208,80.0,,375.0,0,0,0,1,10.351374,4.6875,0,0,0,0,5.3375382,9.661416
18,171,28500.0,11750.0,156.0,3.2,147,35.0,9.0,119.0,0,0,1,0,10.257659,3.4,0,0,0,0,4.9904327,9.371609
19,131,30100.0,12927.0,154.0,3.25,215,31.0,,262.0,1,0,0,0,10.312281,8.451612,0,0,0,0,5.370638,9.467073
20,72,33650.0,16545.0,160.0,3.3,352,72.0,,255.0,0,0,1,0,10.423768,3.5416667,0,0,0,0,5.8636312,9.71384
21,55,40325.0,16680.0,158.0,3.3,305,,93.0,220.0,1,0,0,0,10.604727,,0,0,0,1,5.7203116,9.721966
22,4,70000.0,19392.0,168.0,3.75,555,40.0,,178.0,1,0,0,0,11.156251,4.45,1,0,0,0,6.3189683,9.872616
23,90,32800.0,11268.0,162.0,3.37,339,51.0,152.0,134.0,1,0,0,0,10.398184,2.627451,0,0,0,0,5.826,9.329722
24,133,,10808.0,,,290,72.0,26.0,300.0,1,0,0,0,,4.1666665,0,0,0,0,5.669881,9.288042
25,65,35000.0,12537.0,164.0,3.31,280,62.0,,167.0,0,0,0,1,10.463103,2.6935484,0,0,0,0,5.6347895,9.4364395
26,7,78325.0,20518.0,168.0,3.6,735,101.0,,345.0,0,0,1,0,11.268622,3.4158416,1,0,0,0,6.5998707,9.929058
27,84,,16036.0,160.0,3.29,383,95.0,,133.0,0,0,1,0,,1.4,0,0,0,0,5.948035,9.682591
28,10,67500.0,19200.0,163.0,3.55,400,56.0,,191.0,0,0,1,0,11.119883,3.4107144,1,0,0,0,5.9914646,9.862665
29,112,,12376.0,154.0,3.2,198,51.0,107.0,188.0,0,0,0,1,,3.6862745,0,0,0,0,5.288267,9.423514
30,137,29800.0,13850.0,156.0,3.1,210,58.0,38.0,235.0,0,1,0,0,10.302263,4.051724,0,0,0,0,5.3471074,9.53604
31,141,28900.0,13384.0,155.0,3.2,208,27.0,,185.0,1,0,0,0,10.271597,6.851852,0,0,0,0,5.3375382,9.501815
32,47,42300.0,15221.0,158.0,3.2,275,83.0,,341.0,0,0,0,1,10.652542,4.1084337,0,0,0,1,5.616771,9.630431
33,82,32900.0,14115.0,158.0,3.27,312,109.0,,373.0,1,0,0,0,10.401228,3.4220183,0,0,0,0,5.7430034,9.554994
34,144,29200.0,,155.0,3.0,200,60.0,94.0,146.0,1,0,0,0,10.281924,2.4333334,0,0,0,0,5.2983174,
35,76,34500.0,12500.0,155.0,3.3,190,28.0,73.0,,1,0,0,0,10.448714,,0,0,0,0,5.247024,9.433484
36,94,,12200.0,156.0,3.4,325,61.0,151.0,177.0,0,0,1,0,,2.9016395,0,0,0,0,5.7838254,9.409191
37,88,32300.0,13780.0,155.0,3.23,240,65.0,120.0,234.0,0,0,0,1,10.382822,3.6,0,0,0,0,5.480639,9.530973
38,9,60172.0,19016.0,169.0,3.7,450,82.0,,96.0,0,0,1,0,11.004962,1.1707317,1,0,0,0,6.1092477,9.853036
39,89,32093.0,10353.0,,,192,58.0,74.0,200.0,0,0,1,0,10.376393,3.4482758,0,0,0,0,5.2574954,9.245031
40,43,46103.0,17170.0,163.0,3.4,260,78.0,149.0,236.0,0,1,0,0,10.738633,3.025641,0,0,0,1,5.560682,9.750919
41,59,,12570.0,162.0,3.53,530,68.0,76.0,200.0,0,1,0,0,,2.9411764,0,0,0,1,6.272877,9.439068
42,81,33900.0,11400.0,158.0,3.3,346,58.0,24.0,204.0,0,1,0,0,10.43117,3.5172415,0,0,0,0,5.846439,9.341369
43,22,64880.0,17900.0,163.0,3.3,410,187.0,144.0,547.0,0,0,1,0,11.080295,2.9251337,0,1,0,0,6.016157,9.792556
44,142,29336.0,12100.0,154.0,3.0,186,51.0,12.0,134.0,0,0,1,0,10.286571,2.627451,0,0,0,0,5.2257466,9.400961
45,127,,16212.0,160.0,3.27,260,50.0,6.0,251.0,0,0,1,0,,5.02,0,0,0,0,5.560682,9.693507
46,31,61000.0,17650.0,163.0,3.51,403,196.0,120.0,475.0,0,0,1,0,11.018629,2.4234693,0,0,1,0,5.9989367,9.778491
47,18,62705.0,18995.0,166.0,3.52,728,245.0,61.0,643.0,0,0,1,0,11.046197,2.6244898,0,1,0,0,6.590301,9.851931
48,46,45889.0,7221.0,163.0,3.4,456,52.0,126.0,241.0,0,1,0,0,10.733981,4.6346154,0,0,0,1,6.122493,8.884748
49,175,,7500.0,159.0,3.12,221,41.0,3.0,195.0,0,1,0,0,,4.756098,0,0,0,0,5.398163,8.922658
50,79,34130.0,14554.0,158.0,3.14,200,109.0,84.0,237.0,0,0,0,1,10.437932,2.1743119,0,0,0,0,5.2983174,9.585621
51,74,34400.0,13175.0,154.0,3.16,197,43.0,73.0,194.0,0,0,0,1,10.445812,4.5116277,0,0,0,0,5.2832036,9.486076
52,1,67815.0,18364.0,168.0,3.75,1745,113.0,173.0,553.0,0,0,1,0,11.124538,4.8938055,1,0,0,0,7.46451,9.818148
53,139,30580.0,7820.0,160.0,3.42,231,36.0,12.0,76.0,0,0,0,1,10.328101,2.1111112,0,0,0,0,5.4424176,8.964439
54,28,51082.0,16740.0,158.0,3.25,395,67.0,,284.0,0,0,1,0,10.8411875,4.238806,0,0,1,0,5.9788857,9.725556
55,48,39000.0,7300.0,159.0,3.3,400,113.0,,310.0,0,1,0,0,10.571317,2.743363,0,0,0,1,5.9914646,8.89563
56,116,29500.0,9625.0,152.0,2.85,240,42.0,118.0,161.0,0,0,1,0,10.292146,3.8333333,0,0,0,0,5.480639,9.172119
57,132,27000.0,6810.0,152.0,3.25,146,22.0,76.0,96.0,0,0,0,1,10.203592,4.3636365,0,0,0,0,4.983607,8.826147
58,38,40000.0,12622.0,161.0,3.4,593,65.0,95.0,205.0,1,0,0,0,10.596635,3.1538463,0,0,1,0,6.3851943,9.443196
59,30,50000.0,12382.0,160.0,3.49,510,54.0,133.0,209.0,1,0,0,0,10.819778,3.8703704,0,0,1,0,6.234411,9.423999
60,109,31000.0,11588.0,159.0,3.3,410,63.0,,264.0,1,0,0,0,10.3417425,4.1904764,0,0,0,0,6.016157,9.357725
61,172,26000.0,7225.0,140.0,3.15,161,38.0,,176.0,0,1,0,0,10.165852,4.631579,0,0,0,0,5.081404,8.885303
62,17,63000.0,10190.0,159.0,3.49,727,54.0,120.0,233.0,0,0,0,1,11.05089,4.314815,0,1,0,0,6.5889263,9.229162
63,113,30000.0,13200.0,158.0,3.2,280,188.0,86.0,260.0,1,0,0,0,10.308952,1.3829787,0,0,0,0,5.6347895,9.487972
64,62,36000.0,6996.0,159.0,3.43,325,39.0,94.0,302.0,0,0,0,1,10.491274,7.74359,0,0,0,0,5.7838254,8.853094
65,92,33000.0,9738.0,160.0,3.3,329,48.0,77.0,135.0,0,1,0,0,10.404263,2.8125,0,0,0,0,5.7960577,9.183791
66,123,29750.0,13900.0,161.0,3.2,325,100.0,,246.0,0,0,0,1,10.300585,2.46,0,0,0,0,5.7838254,9.539644
67,83,34750.0,4247.0,156.0,3.35,540,47.0,78.0,284.0,0,1,0,0,10.455935,6.0425534,0,0,0,0,6.291569,8.353968
68,93,33900.0,9639.0,157.0,3.2,236,39.0,139.0,142.0,0,1,0,0,10.43117,3.6410255,0,0,0,0,5.463832,9.173573
69,73,35000.0,13950.0,160.0,3.24,285,154.0,,246.0,1,0,0,0,10.463103,1.5974026,0,0,0,0,5.652489,9.543235
70,36,39000.0,16604.0,161.0,3.35,341,96.0,65.0,,0,0,0,1,10.571317,,0,0,1,0,5.8318825,9.717399
71,155,29640.0,14663.0,152.0,3.1,230,61.0,71.0,225.0,0,1,0,0,10.29688,3.6885245,0,0,0,0,5.4380794,9.593082
72,150,28420.0,,157.0,3.3,280,23.0,,95.0,0,0,1,0,10.2548485,4.130435,0,0,0,0,5.6347895,
73,40,39500.0,12600.0,157.0,3.2,220,51.0,93.0,169.0,1,0,0,0,10.584056,3.3137255,0,0,1,0,5.3936276,9.441452
74,57,38000.0,13245.0,160.0,3.35,325,103.0,,261.0,0,0,1,0,10.5453415,2.5339806,0,0,0,1,5.7838254,9.491375
75,37,42000.0,15114.0,157.0,3.24,285,88.0,61.0,437.0,0,0,0,1,10.645425,4.965909,0,0,1,0,5.652489,9.623377
76,140,30150.0,7504.0,154.0,3.2,246,41.0,23.0,166.0,0,1,0,0,10.31394,4.0487804,0,0,0,0,5.5053315,8.923191
77,105,30000.0,13800.0,157.0,3.1,252,49.0,112.0,155.0,0,1,0,0,10.308952,3.1632652,0,0,0,0,5.529429,9.532424
78,107,39900.0,17310.0,155.0,3.2,392,138.0,59.0,482.0,0,1,0,0,10.594131,3.4927535,0,0,0,0,5.971262,9.75904
79,2,65000.0,19575.0,168.0,3.67,750,97.0,126.0,381.0,1,0,0,0,11.082143,3.927835,1,0,0,0,6.6200733,9.882009
80,20,49862.0,12949.0,163.0,3.56,800,128.0,,270.0,1,0,0,0,10.817015,2.109375,0,1,0,0,6.684612,9.468774
81,54,40591.0,6268.0,153.0,3.3,260,32.0,131.0,170.0,0,1,0,0,10.611301,5.3125,0,0,0,1,5.560682,8.743213
82,85,34750.0,10500.0,153.0,3.0,220,35.0,,151.0,0,1,0,0,10.455935,4.3142858,0,0,0,0,5.3936276,9.2591305
83,96,36900.0,12133.0,154.0,3.28,245,57.0,90.0,159.0,0,0,0,1,10.515966,2.7894738,0,0,0,0,5.5012584,9.403685
84,122,29750.0,9292.0,155.0,3.2,124,27.0,74.0,77.0,1,0,0,0,10.300585,2.851852,0,0,0,0,4.8202815,9.1369095
85,97,34000.0,8700.0,156.0,3.4,304,56.0,97.0,162.0,0,0,0,1,10.434115,2.892857,0,0,0,0,5.7170277,9.071078
86,114,29500.0,11150.0,152.0,3.07,242,103.0,77.0,402.0,0,0,1,0,10.292146,3.9029126,0,0,0,0,5.488938,9.319195
87,125,29500.0,8274.0,158.0,3.2,350,48.0,,109.0,0,1,0,0,10.292146,2.2708333,0,0,0,0,5.857933,9.020873
88,86,34700.0,16670.0,154.0,3.0,377,150.0,94.0,447.0,0,0,1,0,10.454495,2.98,0,0,0,0,5.9322453,9.721366
89,11,56200.0,19740.0,,,888,105.0,150.0,430.0,0,0,1,0,10.936672,4.095238,0,1,0,0,6.788972,9.890402
90,163,28800.0,6755.0,152.0,3.22,250,,86.0,,1,0,0,0,10.26813,,0,0,0,0,5.521461,8.818038
91,110,28900.0,16860.0,159.0,3.23,165,55.0,,209.0,0,0,1,0,10.271597,3.8,0,0,0,0,5.1059456,9.732699
92,160,30000.0,6512.0,157.0,3.0,200,35.0,,118.0,1,0,0,0,10.308952,3.3714285,0,0,0,0,5.2983174,8.781402
93,167,28000.0,,151.0,3.31,234,47.0,92.0,172.0,0,1,0,0,10.23996,3.6595745,0,0,0,0,5.4553213,
94,14,67000.0,18170.0,162.0,3.6,557,111.0,94.0,203.0,1,0,0,0,11.112448,1.8288288,0,1,0,0,6.322565,9.807528
95,35,53177.0,16400.0,161.0,3.45,340,60.0,116.0,175.0,1,0,0,0,10.881381,2.9166667,0,0,1,0,5.8289456,9.705036
96,136,29699.0,16960.0,156.0,3.0,225,41.0,100.0,139.0,1,0,0,0,10.298868,3.390244,0,0,0,0,5.4161005,9.738613
97,33,41300.0,12200.0,161.0,3.5,590,57.0,94.0,225.0,1,0,0,0,10.628618,3.9473684,0,0,1,0,6.3801227,9.409191
98,80,34800.0,9198.0,154.0,3.28,262,40.0,76.0,213.0,0,1,0,0,10.457373,5.325,0,0,0,0,5.5683446,9.126741
99,134,27000.0,10850.0,151.0,3.03,216,48.0,,237.0,0,1,0,0,10.203592,4.9375,0,0,0,0,5.3752785,9.291921
100,53,39000.0,12680.0,160.0,3.5,291,40.0,101.0,149.0,0,0,0,1,10.571317,3.725,0,0,0,1,5.673323,9.447782
101,162,26000.0,16310.0,159.0,3.3,280,78.0,,232.0,0,0,1,0,10.165852,2.974359,0,0,0,0,5.6347895,9.699533
102,8,65000.0,19767.0,165.0,3.7,540,93.0,133.0,238.0,0,0,1,0,11.082143,2.5591397,1,0,0,0,6.291569,9.891769
103,165,24900.0,2623.0,146.0,3.38,211,56.0,72.0,149.0,0,1,0,0,10.122623,2.6607144,0,0,0,0,5.351858,7.872074
104,129,28000.0,13800.0,159.0,3.3,301,65.0,,305.0,0,0,0,1,10.23996,4.6923075,0,0,0,0,5.7071104,9.532424
105,148,30135.0,14040.0,161.0,3.23,216,87.0,,163.0,0,1,0,0,10.313442,1.8735632,0,0,0,0,5.3752785,9.549665
106,64,37600.0,10638.0,157.0,3.22,450,37.0,,222.0,0,0,1,0,10.5347595,6.0,0,0,0,0,6.1092477,9.272188
107,60,39800.0,10653.0,161.0,3.39,393,35.0,,242.0,0,0,1,0,10.591622,6.9142857,0,0,0,1,5.9738097,9.273597
108,70,36000.0,15500.0,158.0,3.2,409,63.0,,305.0,0,0,1,0,10.491274,4.84127,0,0,0,0,6.0137153,9.648595
109,68,35000.0,13520.0,156.0,3.3,400,59.0,,259.0,0,1,0,0,10.463103,4.3898306,0,0,0,0,5.9914646,9.511926
110,151,29700.0,,154.0,3.0,268,69.0,58.0,269.0,0,1,0,0,10.2989025,3.8985507,0,0,0,0,5.590987,
111,52,41000.0,16480.0,160.0,3.25,320,114.0,31.0,337.0,0,0,0,1,10.621327,2.9561403,0,0,0,1,5.768321,9.709903
112,56,39000.0,15800.0,159.0,3.17,245,91.0,73.0,241.0,0,0,0,1,10.571317,2.6483517,0,0,0,1,5.5012584,9.667766
113,61,38750.0,15540.0,159.0,3.32,210,53.0,73.0,286.0,0,0,0,1,10.564886,5.3962264,0,0,0,0,5.3471074,9.651173
114,87,34700.0,15870.0,155.0,3.16,316,148.0,34.0,454.0,0,0,1,0,10.454495,3.0675676,0,0,0,0,5.755742,9.672186
115,118,30000.0,10546.0,157.0,3.2,326,69.0,118.0,240.0,0,0,1,0,10.308952,3.4782608,0,0,0,0,5.786897,9.263502
116,153,29650.0,6910.0,156.0,3.24,156,18.0,84.0,77.0,0,0,0,1,10.297217,4.2777777,0,0,0,0,5.049856,8.840725
117,168,29500.0,12600.0,155.0,3.0,290,89.0,62.0,464.0,0,1,0,0,10.292146,5.2134833,0,0,0,0,5.669881,9.441452
118,26,52000.0,17430.0,164.0,3.5,330,48.0,78.0,200.0,0,0,0,1,10.858999,4.1666665,0,0,1,0,5.799093,9.765948
119,106,30050.0,9186.0,156.0,3.3,302,33.0,,127.0,1,0,0,0,10.310618,3.8484848,0,0,0,0,5.710427,9.125436
120,42,39000.0,17372.0,159.0,3.18,440,41.0,62.0,256.0,0,1,0,0,10.571317,6.243902,0,0,0,1,6.086775,9.762615
121,75,34900.0,16240.0,157.0,3.15,340,78.0,74.0,410.0,0,0,0,1,10.460242,5.25641,0,0,0,0,5.8289456,9.695232
122,6,63000.0,18186.0,167.0,3.78,414,52.0,92.0,180.0,0,0,0,1,11.05089,3.4615386,1,0,0,0,6.025866,9.808408
123,146,30000.0,16585.0,,,316,83.0,85.0,217.0,0,1,0,0,10.308952,2.6144578,0,0,0,0,5.755742,9.716254
124,108,29000.0,14340.0,158.0,3.3,300,130.0,79.0,520.0,0,0,1,0,10.275051,4.0,0,0,0,0,5.7037826,9.570808
125,51,41000.0,17348.0,155.0,3.2,319,75.0,90.0,295.0,0,0,1,0,10.621327,3.9333334,0,0,0,1,5.765191,9.761232
126,45,41150.0,13300.0,157.0,3.3,439,190.0,90.0,396.0,0,0,1,0,10.624979,2.0842106,0,0,0,1,6.0844994,9.49552
127,117,29499.0,7716.0,,,345,,95.0,169.0,0,1,0,0,10.292111,,0,0,0,0,5.8435445,8.951052
128,12,59500.0,8640.0,163.0,3.5,850,,78.0,523.0,0,1,0,0,10.9937315,,0,1,0,0,6.7452364,9.0641575
129,170,27000.0,,145.0,2.73,300,45.0,38.0,230.0,0,1,0,0,10.203592,5.111111,0,0,0,0,5.7037826,
130,101,35500.0,4388.0,157.0,3.1,260,58.0,79.0,232.0,0,1,0,0,10.477288,4.0,0,0,0,0,5.560682,8.386629
131,121,29799.0,,149.0,,305,51.0,13.0,285.0,1,0,0,0,10.30223,5.5882354,0,0,0,0,5.7203116,
132,154,29600.0,10280.0,157.0,3.1,260,58.0,79.0,232.0,1,0,0,0,10.295529,4.0,0,0,0,0,5.560682,9.237955
133,174,25000.0,14470.0,152.0,2.8,310,65.0,,286.0,0,0,1,0,10.126631,4.4,0,0,0,0,5.7365723,9.579833
134,100,36000.0,8715.0,155.0,3.0,260,56.0,,216.0,0,1,0,0,10.491274,3.857143,0,0,0,0,5.560682,9.072801
135,29,49000.0,8529.0,161.0,3.55,264,55.0,,124.0,0,0,0,1,10.799576,2.2545455,0,0,1,0,5.575949,9.051228

7. Use the data in LAWSCH85_1.dta to estimate the model In (salary) ??+?2L SAT+?3G PA + ?41n (libool) +p51n (cost) + ?6rank + u, = where salary is the median salary for new law school graduates, LSAT is the median LSAT score for the graduating class, GP A is the median college GPA for the class, libvol is the number of volumes in the law school library, cost is the annual cost of attending law school, and rank is the rank of the law school (with rank-1 being the best). (a) Interpret the estimated coefficient on rank. (b) Interpret the estimated coefficient on In (libool).

Explanation / Answer

using R

Call:

lm(formula = log(salary) ~ LSAT + GPA + log(libvol) + log(cost) +

rank, data = t1)

Residuals:

Min 1Q Median 3Q Max

-0.83545 -0.09410 -0.03637 0.08873 0.68533

Coefficients:

Estimate Std. Error t value Pr(>|t|)   

(Intercept) 10.2109583 0.3537821 28.862 < 2e-16 ***

LSAT 0.0004430 0.0002794 1.585 0.11532   

GPA -0.0011663 0.0004332 -2.693 0.00802 **

log(libvol) 0.0426209 0.0499734 0.853 0.39530   

log(cost) 0.0359924 0.0322692 1.115 0.26675   

rank -0.0040317 0.0005039 -8.000 5.99e-13 ***

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Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.2133 on 130 degrees of freedom

Multiple R-squared: 0.6955, Adjusted R-squared: 0.6837

F-statistic: 59.37 on 5 and 130 DF, p-value: < 2.2e-16

given everything else is constant if the rank increases by 1 point the log(salary ) dcreases by 0.0040317

given everything is constant if ln(libvol) increases by 1unit then log(salary) increases by 0.0426209