QUESTION 30 A researcher wants to study factors that influence salaries at a large bank. Prior to deciding on the specification for the regression model, the researcher creates a histogram of the dependent variable, salary. Based on the histogram in the data file below, what should the researcher do? Salaries Histogram.xlsx O a. Since the histogram suggests that the salary variable is skewed, the researcher should use the natural log of salary as the dependent variable. O b. The researcher should use the salary variable as given. Oc. The researcher should include a squared term to account for the nonlinearity. O d. The researcher should use a trend term. 31 D 4 E EL G H J 7 33 Female No $33,000 32 7 4 35 Female No $28,760 33 11 0 44 Female No $35,400 34 3 8 43 Male No $31,000 35 18 2 46 Female No $38,800 36 14 0 42 Female No $34,300 37 19 0 47 Female No $35,000 38 3 2 25 Female Yes $34,600 39 2 4 30 Female No $28,500 40 11 0 40 Female No $29,500 41 3 2 26 Male No $30,500 42 5 1 32 Female No $34,200 43 15 0 51 Female No $43,600 44 7 0 35 Female Yes $33,500 45 12 1 37 Female No $33,000 46 18 0 44 Female No $45,300 47 17 3 53 Male No $38,800 48 10 0 40 Female No $29,900 49 50 51 52 53 5523 10 51 Male No $31,200 0 42 Female No $34,000 0 53 Female No $30,450 3 58 Male No $35,500 54 47 10 44 Female Yes $34,000 7 0 31 Female No $29,100 55 00 8 0 64 Female No $29,650 56 15 1 47 Female No $29,200 57 9 0 37 Female Yes $29,800 58 16 0 46 Female No $33,500 59 00 8 0 55 Female No $34,000 60 9 0 39 Female No $29,600 61 18 0 51 Female No $34,000 62 3 8 37 Female No $37,250 63 6 3 30 Male No $33,000 63 61 62 D 18 36 E FL G H 0 51 Female No $34,000 00 m 8 37 Female No $37,250 3 30 Male No $33,000 64 4 0 26 Female No $28,600 65 5 1 41 Female Yes $36,000 66 4 4 34 Female Yes $37,300 67 7 st 4 57 Male No $29,900 68 11 8 53 Female No $31,500 69 10 5 4 32 Female Yes $41,400 70 17 5 44 Female No $32,740 71 3 1 25 Male No $33,500 72 5 9 31 Female No $32,000 73 9 0 50 Female No $30,800 74 3 3 47 Female Yes $42,000 75 4 0 35 Male No $34,000 76 16 0 43 Female No $32,500 77 6 10 46 Female No $31,700 78 3 0 35 Male No $36,500 79 4 0 22 Male No $33,000 80 8 0 58 Female No $31,200 81 8 0 40 Female No $34,000 82 6 0 30 Female No $33,000 83 4 st 4 29 Female No $33,900 84 3 9 31 Female Yes $39,000 85 12 18 52 Male No $34,920 86 87 m 00 3 5 33 Male No $39,000 8 0 49 Female No $34,000 88 6 7 34 Female No $31,900 89 3 1 26 Male No $37,000 90 4 0 28 Male No $34,000 91 3 2 35 Female No $36,400 92 15 93 15 HO 1 47 Female Yes $38,200 0 51 Female No OP $35,300 D E F H J 91 3 2 35 Female No $36,400 92 15 93 15 55 1 47 Female Yes $38,200 0 51 Female No $35,300 94 3 2 26 Male No $34,500 95 12 0 33 Female No $30,500 96 2 2 27 Male No $30,000 97 00 8 0 34 Female Yes $37,300 98 5 0 29 Female No $40,200 99 5 0 27 Male No $35,500 00 11 0 43 Female No $35,000 01 st 4 3 36 Female No $38,000 02 9 0 38 Female No $35,300 03 14 0 60 Female No $34,100 04 4 st 5 43 Female Yes $43,200 05 15 5 48 Female No $36,100 06 07 75 3 32 Female No $34,600 0 31 Male No $36,000 08 7 2 29 Female No $36,200 09 7 0 35 Female No $37,500 10 st 4 12 37 Female No $41,000 11 10 0 43 Female No $35,600 12 13 10 2 m 5 5 33 Female No $39,800 11 4 58 Female Yes $41,300 14 9 7 44 Female No $42,500 15 16 st 4 8 37 Female Yes $45,800 17 69 5 6 48 Female No $34,900 4 st 0 26 Male No $41,500 18 5 0 25 Female No $38,000 19 6 0 38 Female No $35,000 20 6 0 41 Female No $40,000 21 5 ST 0 29 Male No $36,000 22 95 9 0 59 Female 23 5 4 29 Male 22 No $33,700 No $36,300 Source Data D E F G H K 121 5 0 29 Male No $36,000 122 9 0 59 Female No $33,700 123 50 S 4 29 Male No $36,300 124 3 2 27 Female Yes $38,000 125 4 0 30 Female No $39,500 126 7 5 34 Female No $36,300 127 8 2 35 Female No $32,500 128 12 6 50 Female No $37,000 129 3 1 33 Female No $32,600 130 4 0 26 Female No $36,000 131 3 0 36 Female No $35,000 132 3 5 33 Female Yes $43,600 133 8 0 47 Female No $33,800 134 21 0 51 Female No $35,300 135 16 6 42 Female No $42,400 136 5 0 31 Male No $39,500 137 25 10 62 Female 138 6 1 46 Male 139 21 140 141 142 143 144 13 7 52 2653 9 60 Female 43 Male 53 Female 1 38 Female No 10 69 5 39 Female No 0 35 Female No 145 8 3 40 Female No zzzzzzzzz No $43,500 No $42,000 No $40,300 No $44,000 No $40,660 $39,700 $45,000 $43,900 $38,000 146 5 10 3 147 10 5 m m 32 Female No $39,020 33 Male No $44,500 148 4 1 30 Male No $41,000 149 6 3 37 Male No $44,000 150 6 0 30 Male No $44,000 151 10 5 4 32 Female No $42,500 152 7 3 37 Female 153 5 1 29 Male 22 No $40,260 No $44,500 D 151 5 E 4 FL G H | J K 32 Female No $42,500 152 7 3 37 Female No $40,260 153 5 1 29 Male No $44,500 154 13 9 50 Female No $35,500 155 6 0 29 Male No $42,500 156 7 0 32 Female No $44,000 157 6 2 31 Male No $45,000 158 15 4 47 Female No $44,400 159 17 0 44 Female No $38,000 160 4 0 27 Male No $41,800 161 23 0 55 Male No $45,500 162 5 4 52 Male No $42,500 163 3 12 50 Female No $44,000 164 19 8 59 Female Yes $54,300 165 26 0 47 Female No $44,800 166 6 4 43 Male No $47,000 167 15 0 41 Female No $43,800 168 12 4 39 Female Yes $48,000 169 9 0 39 Female No $42,700 170 14 1 40 Female Yes $48,500 171 16 0 49 Female No $42,000 172 16 1 53 Female No $45,500 173 11 0 37 Female No $44,500 174 13 2 40 Female No $51,200 175 7 0 34 Male No $47,500 176 177 00 00 8 0 37 Female No $44,500 8 0 31 Male No $47,000 178 10 6 10 41 Male No $47,000 179 17 4 46 Female No $43,100 180 8 2 37 Male No $49,000 181 8 0 33 Male No $48,500 182 8 5 35 Female No $45,000 183 16 5 49 Female No $52,500 D 178 6 E 10 FL G H 41 Male No $47,000 179 17 4 46 Female No $43,100 180 00 8 181 00 8 20 37 Male No $49,000 33 Male No $48,500 182 00 8 5 35 Female No $45,000 183 16 5 49 Female No $52,500 184 185 69 2 33 Male No $47,500 0 31 Male No $48,000 186 8 st 4 49 Male No $46,500 187 12 2 40 Female No $61,500 188 9 2 37 Female No $50,000 189 12 2 46 Female No $61,800 190 16 0 43 Female No $43,000 191 11 1 36 Male No $47,000 192 9 6 37 Female No $58,500 193 16 7 40 Male No $55,000 194 24 3 54 Male No $57,000 195 17 1 57 Male No $57,000 196 14 0 49 Male No $60,000 197 13 0 41 Male No $60,000 198 19 4 59 Male No $59,000 199 12 0 51 Male No $60,000 200 20 0 45 Male No $65,000 201 20 1 56 Male No $52,000 202 22 0 57 Male No $58,000 203 21 0 53 Male No $60,000 204 39 0 65 Male No $74,000 205 34 0 60 Male No $95,000 206 36 0 61 Male No $97,000 207 32 0 62 Male No $88,000 208 35 0 59 Male No $94,000 209 33 0 62 Female No $30,000 210 Source Data + 1 D Years1 E Years2 F G H J K L M N P R S U W Y Age Gender PC Job Salary 2 3 1 26 Male No $32,000 3 14 1 38 Female No $39,100 4 12 0 35 Female No $33,200 5 8 7 40 Female No $30,600 6 3 0 28 Male No $29,000 7 3 0 24 Female No $30,500 8 4 0 27 Female No $30,000 9 8 2 33 Male No $27,000 Chart Title 10 4 0 62 Female No $34,000 80 11 9 0 31 Female No $29,500 12 9 2 34 Female No $26,800 70 13 8 8 37 Female No $31,300 14 9 0 37 Female No $31,200 60 15 10 6 58 Female No $34,700 16 4 0 33 Female No $30,000 50 17 3 0 27 Female No $31,000 40 18 6 0 30 Female No $27,000 19 8 9 37 Female No $29,600 30 20 5 6 44 Female No $32,600 21 4 3 29 Female No $29,600 20 22 4 2 36 Female No $29,500 23 3 3 28 Male No $31,000 10 24 5 0 45 Female No $28,500 25 3 4 33 Male No $26,700 0 26 3 1 24 Male No $30,750 27 3 1 27 Male No $29,500 ($33,300, $39,900] [$26,700, $33,300] ($39,900, $46,500] ($46,500, $53,100] ($59,700, $66,300] ($53,100, $59,700] ($72,900, $79,500] ($66,300, $72,900] ($79,500, $86,100] ($86,100, $92,700] ($92,700, $99,300] 28 16 6 60 Female No $42,200 29 13 0 48 Female No $37,600 30 12 6 40 Female No $34,000 31 4 7 33 Female No $33,000 32 7 4 35 Female No $28,760 33 11 0 44 Female No $35,400