y X2 X3 X1 Self Esteem YrsEdu Age MonWork 2 9 52 4 2 9 52 4 3 11 40 14 3 9 46 10 3 12 40 12 3 10 47 6 3 10 50 4 3 10 44 5 3 9 46 9 3 9 47 4 3 10 51 4 3 9 47 11 3 9 51 10 3 10 42 12 3 9 48 9 3 9 46 3 3 12 37 14 3 12 35 13 3 9 43 3 3 10 45 4 3 10 50 10 3 9 46 8 3 11 49 2 3 12 48 7 3 10 45 8 3 9 47 9 3 9 46 6 3 9 47 4 3 10 45 3 3 10 47 2 4 13 28 12 4 12 42 37 4 10 40 23 4 12 38 23 4 9 45 10 4 10 47 10 4 9 47 9 4 12 39 23 4 10 43 12 4 11 39 21 4 12 33 10 4 12 35 11 4 12 45 14 4 13 41 12 4 9 43 5 5 12 28 51 5 14 32 40 5 14 38 29 5 14 36 29 5 14 39 29 5 13 39 21 5 9 48 7 X4 MS2 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 X5 MS3 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 X6 MS4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 X7 SL 0 0 1 1 0 0 0 0 1 0 0 1 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 1 0 0 0 0 0 0 1 1 1 1 1 1 1 5 5 5 5 6 6 6 6 12 13 14 13 12 12 16 14 29 26 30 26 27 38 28 38 24 32 37 31 58 17 61 64 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 1 1 1 0 1 1 Categorical Variables SL MS None Single None Single Direct Single Direct Single None Single None Single None Single None Single Direct Married None Married None Married Direct Separated Direct Separated Direct Separated Direct Separated None Separated None Separated None Separated None Separated None Separated Direct Divorced None Divorced None Divorced None Divorced None Divorced None Divorced None Divorced None Divorced None Divorced None Divorced Direct Single Direct Single Direct Single Direct Single Direct Single Direct Single Direct Single None Married Direct Separated None Separated None Separated None Separated None Divorced None Divorced None Divorced Direct Single Direct Single Direct Single Direct Single Direct Single Direct Single Direct Married Question 1 Part c d Grader Part e Grader Direct Direct Direct Direct Direct None Direct Direct Married Married Separated Divorced Single Single Married Separated Part f Grader Part Grader a b y variable Salary: current annual salary in thousands of dollars. x variables YrsExp: years experience with this Bbank YrsPrior: number of years prior work experience at another bank. Gender: (categorical), 1 = Female, 0 = Male Bank salary data Employee 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Salary YrsExp 32 6 39.1 17 33.2 15 30.6 11 29 6 30.5 6 30 7 27 11 34 7 29.5 12 26.8 12 31.3 11 31.2 12 34.7 13 30 7 31 6 27 9 29.6 11 32.6 8 29.6 7 29.5 7 31 6 28.5 8 26.7 6 30.75 6 29.5 6 42.2 19 37.6 16 34 15 33 7 28.76 10 35.4 14 31 6 38.8 21 34.3 17 35 22 34.6 6 28.5 5 29.5 14 30.5 6 34.2 8 43.6 18 33.5 10 33 15 YrsPrior 1 1 0 7 0 0 0 2 0 0 2 8 0 6 0 0 0 9 6 3 2 3 0 4 1 1 6 0 6 7 4 0 8 2 0 0 2 4 0 2 1 0 0 1 Gender Male Female Female Female Male Female Female Male Female Female Female Female Female Female Female Female Female Female Female Female Female Male Female Male Male Male Female Female Female Female Female Female Male Female Female Female Female Female Female Male Female Female Female Female Question 2: Part Grader a b c Part d Grader 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 45.3 38.8 29.9 31.2 34 30.45 35.5 34 29.1 29.65 29.2 29.8 33.5 34 29.6 34 37.25 33 28.6 36 37.3 29.9 31.5 41.4 32.74 33.5 32 30.8 42 34 32.5 31.7 36.5 33 31.2 34 33 33.9 39 34.92 39 34 31.9 37 34 36.4 38.2 35.3 34.5 30.5 30 37.3 40.2 35.5 21 20 13 8 18 5 6 7 10 11 18 12 19 11 12 21 6 9 7 8 7 10 14 8 20 6 8 12 6 7 19 12 6 7 11 11 9 7 6 15 6 11 9 6 7 6 18 18 6 15 5 11 8 8 0 3 0 10 0 0 3 10 0 0 1 0 0 0 0 0 8 3 0 1 4 4 8 4 5 1 9 0 3 0 0 10 0 0 0 0 0 4 9 18 5 0 7 1 0 2 1 0 2 0 2 0 0 0 Female Male Female Male Female Female Male Female Female Female Female Female Female Female Female Female Female Male Female Female Female Male Female Female Female Male Female Female Female Male Female Female Male Male Female Female Female Female Female Male Male Female Female Male Male Female Female Female Male Female Male Female Female Male 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 35 38 35.3 34.1 43.2 36.1 34.6 36 36.2 37.5 41 35.6 39.8 41.3 42.5 45.8 34.9 41.5 38 35 40 36 33.7 36.3 38 39.5 36.3 32.5 37 32.6 36 35 43.6 33.8 35.3 42.4 39.5 43.5 42 40.3 44 40.66 39.7 45 43.9 38 39.02 44.5 41 44 44 42.5 40.26 44.5 14 7 12 17 7 18 10 8 10 10 7 13 8 14 12 7 8 7 8 9 9 8 12 8 6 7 10 11 15 6 7 6 6 11 24 19 8 28 9 24 9 28 16 9 10 11 8 8 7 9 9 8 10 8 0 3 0 0 5 5 3 0 2 0 12 0 5 4 7 8 6 0 0 0 0 0 0 4 2 0 5 2 6 1 0 0 5 0 0 6 0 10 1 9 5 2 1 5 0 3 3 3 1 3 0 4 3 1 Female Female Female Female Female Female Female Male Female Female Female Female Female Female Female Female Female Male Female Female Female Male Female Male Female Female Female Female Female Female Female Female Female Female Female Female Male Female Male Female Male Female Female Female Female Female Female Male Male Male Male Female Female Male 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 35.5 42.5 44 45 44.4 38 41.8 45.5 42.5 44 54.3 44.8 47 43.8 48 42.7 48.5 42 45.5 44.5 51.2 47.5 44.5 47 47 43.1 49 48.5 45 52.5 47.5 48 46.5 61.5 50 61.8 43 47 58.5 55 57 57 60 60 59 60 65 52 58 60 74 95 97 88 16 9 10 9 18 20 7 26 8 6 22 29 9 18 15 12 17 19 19 14 16 10 11 11 9 20 11 11 11 19 9 10 11 15 12 15 19 14 12 19 27 20 17 16 22 15 23 23 25 24 42 37 39 35 9 0 0 2 4 0 0 0 4 12 8 0 4 0 4 0 1 0 1 0 2 0 0 0 10 4 2 0 5 5 2 0 4 2 2 2 0 1 6 7 3 1 0 0 4 0 0 1 0 0 0 0 0 0 Female Male Female Male Female Female Male Male Male Female Female Female Male Female Female Female Female Female Female Female Female Male Female Male Male Female Male Male Female Female Male Male Male Female Female Female Female Male Female Male Male Male Male Male Male Male Male Male Male Male Male Male Male Male 207 208 94 30 38 36 0 0 Male Female Measurements taken on 63 single-family residences Residence 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 sales price (x $1,000) Y 53.5 49.0 50.5 49.9 52.0 55.0 80.5 86.0 69.0 149.0 46.0 38.0 49.5 105.0 152.5 85.0 60.0 58.5 101.0 79.4 125.0 87.9 80.0 94.0 74.0 69.0 63.0 67.5 35.0 142.5 92.2 56.0 63.0 60.0 34.0 52.0 75.0 93.0 60.0 73.0 71.0 83.0 90.0 83.0 115.0 50.0 55.2 61.0 147.0 210.0 60.0 100.0 square feet X1 1008 1290 860 912 1204 1204 1764 1600 1255 3600 864 720 1008 1950 2086 2011 1465 1232 1736 1296 1996 1874 1580 1920 1430 1486 1008 1282 1134 2400 1701 1020 1053 1728 416 1040 1496 1936 1904 1080 1768 1503 1736 1695 2186 888 1120 1400 2165 2353 1536 1972 rooms X2 5 6 8 5 6 5 8 7 5 10 5 4 6 8 7 9 6 5 7 6 7 5 5 5 9 6 5 5 5 9 5 6 5 6 3 5 6 8 7 5 8 6 7 6 8 5 6 5 7 8 6 8 bedrooms X3 2 3 2 3 3 3 4 3 3 5 3 2 3 3 3 4 3 2 3 3 3 2 3 3 3 3 2 3 2 4 3 3 2 3 1 2 3 4 4 2 4 3 3 3 4 2 3 3 3 4 3 3 age X4 35 36 36 41 40 10 64 19 16 17 37 41 35 52 12 76 102 69 67 11 9 14 11 14 16 27 35 20 74 15 15 16 24 26 42 9 30 39 32 24 74 14 16 12 12 34 29 33 2 15 36 37 53 54 55 56 57 58 59 60 61 62 63 44.5 55.0 53.4 65.0 73.0 40.0 141.0 68.0 139.0 140.0 55.0 1120 1664 925 1288 1400 1376 2038 1572 1545 1993 1130 5 7 5 5 5 6 12 6 6 6 5 3 3 3 3 3 3 4 3 3 3 2 27 79 20 2 2 103 62 29 9 4 21 Question 3: Part a Part b Sales 3669.88 3473.95 2295.1 4675.56 6125.96 2134.94 5031.66 3367.45 6519.45 4876.37 2468.27 2533.31 2408.11 2337.38 4586.95 2729.24 3289.4 2800.78 3264.2 3453.62 1741.45 2035.75 1578 4167.44 2799.97 Time 43.1 108.13 13.82 186.18 161.79 8.94 365.04 220.32 127.64 105.69 57.72 23.58 13.82 13.82 86.99 165.85 116.26 42.28 52.84 165.04 10.57 13.82 8.13 58.44 21.14 Poten 74065.1 58117.3 21118.5 68521.3 57805.1 37806.9 50935.3 35602.1 46176.8 42053.2 36829.7 33612.7 21412.8 20416.9 36272 23093.3 26878.6 39572 51866.1 58749.8 23990.8 25694.9 23736.3 34314.3 22809.5 AdvExp 4582.9 5539.8 2950.4 2243.1 7747.1 402.4 3140.6 2086.2 8846.2 5673.1 2761.8 1991.8 1971.5 1737.4 10694.2 8618.6 7747.9 4565.8 6022.7 3721.1 861 3571.5 2845.5 5060.1 3552 Share 2.51 5.51 10.91 8.27 9.15 5.51 8.54 7.07 12.54 8.85 5.38 5.43 8.48 7.8 10.34 5.15 6.64 5.45 6.31 6.35 7.37 8.39 5.15 12.88 9.14 Change Accounts 0.34 74.86 0.15 107.32 -0.72 96.75 0.17 195.12 0.5 180.44 0.15 104.88 0.55 256.1 -0.49 126.83 1.24 203.25 0.31 119.51 0.37 116.26 -0.65 142.28 0.64 89.43 1.01 84.55 0.11 119.51 0.04 80.49 0.68 136.58 0.66 78.86 -0.1 136.58 -0.03 138.21 -1.63 75.61 -0.43 102.44 0.04 76.42 0.22 136.58 -0.74 88.62 Work 15.05 19.97 17.34 13.4 17.64 16.22 18.8 19.86 17.42 21.41 16.32 14.51 19.35 20.02 15.26 15.87 7.81 16 17.44 17.98 20.99 21.66 21.46 24.78 24.96 Rating 4.9 5.1 2.9 3.4 4.6 4.5 4.6 2.3 4.9 2.8 3.1 4.2 4.3 4.2 5.5 3.6 3.4 4.2 3.6 3.1 1.6 3.4 2.7 2.8 3.9 Question 4: Part a Part b Part c Part d Car Toyota Corolla (base, manual) Mazda3 i Touring (manual) Toyota Corolla LE Mazda3 i Touring Hyundai Elantra GLS Nissan Sentra 2.0 SL Kia Forte Sedan EX Ford Focus SE Ford Fiesta SE Volkswagen Jetta SE (2.5) Volkswagen Jetta TDI Chevrolet Cruze LS (1.8) Chevrolet Cruze 1LT (1.4T) Nissan Altima 2.5 S (4-cyl.) Kia Optima LX (2.4) Subaru Legacy 2.5i Premium Ford Fusion Hybrid Honda Accord LX-P (4-cyl.) Mazda6 i Sport (4-cyl.) Hyundai Sonata GLS (2.4) Ford Fusion SE (4-cyl.) Chevrolet Malibu LT (4-cyl.) Kia Optima SX (2.0T) Ford Fusion SEL (V6) Nissan Altima 3.5 SR (V6) Hyundai Sonata Limited (2.0T) Honda Accord EX-L (V6) Mazda6 s Grand Touring (V6) Ford Fusion SEL (V6, AWD) Subaru Legacy 3.6R Limited Chevrolet Malibu LTZ (V6) Chrysler 200 Limited (V6) Chevrolet Impala LT (3.6) Lexus ES 350 Acura TL (base) Lexus IS 250 Infiniti G25 Journey Lexus HS 250h Premium Acura TSX (4-cyl.) Infiniti G37 Journey Toyota Avalon Limited Hyundai Genesis 3.8 Volvo S60 T5 Nissan Maxima 3.5 SV Buick Regal CXL (2.4) Lincoln MKZ BMW 328i Audi A4 Premium Quattro Ford Taurus Limited Buick Regal CXL (turbo) Mercedes-Benz C300 Sport Volkswagen CC Luxury (2.0T) Saab 9-3 2.0T Buick LaCrosse CXS (V6) Size Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Small Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Family Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Upscale Sedan Price ($) Cost/Mile Road-Test Score 16,419 18,895 18,404 19,745 18,445 20,150 19,040 20,280 16,595 20,300 25,100 18,375 20,530 23,970 21,885 23,830 32,360 23,730 22,035 21,800 23,625 24,115 29,050 28,400 30,335 28,090 28,695 30,790 30,055 30,094 28,045 27,825 28,995 38,615 36,465 33,734 34,225 38,939 29,675 37,225 35,485 39,850 35,100 33,700 28,840 37,160 39,175 35,895 34,980 32,135 37,325 32,680 31,615 37,555 0.44 0.50 0.47 0.52 0.53 0.57 0.57 0.52 0.47 0.54 0.50 0.57 0.60 0.59 0.58 0.59 0.63 0.56 0.58 0.56 0.57 0.57 0.72 0.67 0.69 0.66 0.67 0.74 0.71 0.71 0.67 0.70 0.67 0.77 0.75 0.75 0.73 0.75 0.67 0.79 0.73 0.78 0.76 0.78 0.65 0.80 0.79 0.76 0.78 0.71 0.83 0.73 0.70 0.81 70 74 71 70 80 74 71 68 61 60 68 67 69 91 81 83 84 80 73 89 76 74 84 80 93 89 90 81 75 88 83 52 63 91 82 84 86 83 84 95 86 92 77 83 77 77 77 76 73 79 77 82 69 74 Predicted Reliability Value Score 4 5 4 5 3 4 3 2 2 3 2 1 1 4 4 4 5 4 4 3 4 3 4 4 4 3 3 4 4 3 3 5 3 5 5 5 4 4 3 4 3 3 4 3 2 4 3 3 3 2 3 2 3 2 1.99 1.94 1.89 1.82 1.64 1.51 1.32 1.30 1.25 1.24 1.18 0.96 0.91 1.75 1.73 1.73 1.70 1.62 1.60 1.58 1.55 1.48 1.43 1.42 1.42 1.39 1.36 1.34 1.32 1.29 1.20 1.20 1.05 1.45 1.41 1.40 1.37 1.36 1.35 1.33 1.27 1.22 1.18 1.17 1.14 1.12 1.10 1.08 1.07 1.06 1.04 1.04 1.00 0.82 Part a Part b Part c Smallest Largest Part d Part e