In: Statistics and Probability
Science MajorsA bank has collected data on the opening balances of new home loans issued in the final quarter of 2018. The dataset of 200 observations is contained in the file: Home Loans (THA 1).xlsx. Based on the data, answer the following questions.
By comparing Q2 and the sample mean comment on the skewness of the data. Explain your answer briefly.
| Obs | Home Loan, Open. Bal. |
| 1 | 544,723 |
| 2 | 686,461 |
| 3 | 422,582 |
| 4 | 373,228 |
| 5 | 369,600 |
| 6 | 353,011 |
| 7 | 259,339 |
| 8 | 236,532 |
| 9 | 496,713 |
| 10 | 1,052,824 |
| 11 | 454,077 |
| 12 | 806,701 |
| 13 | 482,691 |
| 14 | 920,000 |
| 15 | 444,720 |
| 16 | 780,000 |
| 17 | 377,858 |
| 18 | 366,611 |
| 19 | 283,918 |
| 20 | 216,536 |
| 21 | 291,182 |
| 22 | 776,145 |
| 23 | 375,723 |
| 24 | 403,552 |
| 25 | 342,989 |
| 26 | 191,632 |
| 27 | 800,350 |
| 28 | 268,200 |
| 29 | 519,466 |
| 30 | 293,192 |
| 31 | 414,739 |
| 32 | 352,222 |
| 33 | 258,587 |
| 34 | 228,633 |
| 35 | 329,476 |
| 36 | 324,013 |
| 37 | 239,375 |
| 38 | 489,659 |
| 39 | 279,174 |
| 40 | 457,456 |
| 41 | 409,731 |
| 42 | 1,332,051 |
| 43 | 367,738 |
| 44 | 331,450 |
| 45 | 364,676 |
| 46 | 472,790 |
| 47 | 332,199 |
| 48 | 525,831 |
| 49 | 393,803 |
| 50 | 291,081 |
| 51 | 469,585 |
| 52 | 363,128 |
| 53 | 360,221 |
| 54 | 290,435 |
| 55 | 452,734 |
| 56 | 493,088 |
| 57 | 362,044 |
| 58 | 232,913 |
| 59 | 367,991 |
| 60 | 451,662 |
| 61 | 495,394 |
| 62 | 473,753 |
| 63 | 245,583 |
| 64 | 212,484 |
| 65 | 495,633 |
| 66 | 348,539 |
| 67 | 380,756 |
| 68 | 395,000 |
| 69 | 554,626 |
| 70 | 346,094 |
| 71 | 482,000 |
| 72 | 279,040 |
| 73 | 431,405 |
| 74 | 712,740 |
| 75 | 479,868 |
| 76 | 632,612 |
| 77 | 334,365 |
| 78 | 290,458 |
| 79 | 583,572 |
| 80 | 311,145 |
| 81 | 406,683 |
| 82 | 234,646 |
| 83 | 236,695 |
| 84 | 239,475 |
| 85 | 877,764 |
| 86 | 559,089 |
| 87 | 278,475 |
| 88 | 1,005,103 |
| 89 | 341,572 |
| 90 | 235,907 |
| 91 | 347,033 |
| 92 | 452,277 |
| 93 | 542,540 |
| 94 | 859,707 |
| 95 | 426,113 |
| 96 | 451,640 |
| 97 | 275,643 |
| 98 | 461,818 |
| 99 | 273,911 |
| 100 | 332,744 |
| 101 | 625,000 |
| 102 | 313,953 |
| 103 | 246,979 |
| 104 | 556,798 |
| 105 | 223,566 |
| 106 | 434,694 |
| 107 | 330,051 |
| 108 | 528,349 |
| 109 | 296,459 |
| 110 | 673,742 |
| 111 | 255,977 |
| 112 | 497,893 |
| 113 | 173,452 |
| 114 | 364,564 |
| 115 | 423,801 |
| 116 | 412,745 |
| 117 | 344,350 |
| 118 | 375,594 |
| 119 | 576,789 |
| 120 | 384,224 |
| 121 | 454,949 |
| 122 | 429,826 |
| 123 | 372,453 |
| 124 | 375,593 |
| 125 | 502,794 |
| 126 | 426,347 |
| 127 | 448,161 |
| 128 | 223,132 |
| 129 | 459,372 |
| 130 | 522,012 |
| 131 | 297,186 |
| 132 | 343,947 |
| 133 | 648,363 |
| 134 | 121,147 |
| 135 | 288,658 |
| 136 | 269,492 |
| 137 | 1,310,311 |
| 138 | 167,636 |
| 139 | 377,545 |
| 140 | 564,538 |
| 141 | 1,113,770 |
| 142 | 442,390 |
| 143 | 258,433 |
| 144 | 433,609 |
| 145 | 256,726 |
| 146 | 249,058 |
| 147 | 258,709 |
| 148 | 244,828 |
| 149 | 581,815 |
| 150 | 344,052 |
| 151 | 331,641 |
| 152 | 303,224 |
| 153 | 328,384 |
| 154 | 187,425 |
| 155 | 312,951 |
| 156 | 476,582 |
| 157 | 951,336 |
| 158 | 284,487 |
| 159 | 400,050 |
| 160 | 536,902 |
| 161 | 439,255 |
| 162 | 266,541 |
| 163 | 263,611 |
| 164 | 442,662 |
| 165 | 557,690 |
| 166 | 375,426 |
| 167 | 337,402 |
| 168 | 240,806 |
| 169 | 367,070 |
| 170 | 621,110 |
| 171 | 317,486 |
| 172 | 266,651 |
| 173 | 466,251 |
| 174 | 304,040 |
| 175 | 297,971 |
| 176 | 199,448 |
| 177 | 340,568 |
| 178 | 236,054 |
| 179 | 500,615 |
| 180 | 187,737 |
| 181 | 330,010 |
| 182 | 1,340,394 |
| 183 | 365,058 |
| 184 | 396,187 |
| 185 | 375,523 |
| 186 | 435,712 |
| 187 | 426,242 |
| 188 | 407,575 |
| 189 | 301,040 |
| 190 | 380,631 |
| 191 | 280,846 |
| 192 | 393,315 |
| 193 | 217,536 |
| 194 | 457,019 |
| 195 | 180,584 |
| 196 | 636,068 |
| 197 | 247,106 |
| 198 | 1,458,183 |
| 199 | 434,295 |
| 200 | 462,356 |
| Obs | sorted data |
| 1 | 121,147 |
| 2 | 167,636 |
| 3 | 173,452 |
| 4 | 180,584 |
| 5 | 187,425 |
| 6 | 187,737 |
| 7 | 191,632 |
| 8 | 199,448 |
| 9 | 212,484 |
| 10 | 216,536 |
| 11 | 217,536 |
| 12 | 223,132 |
| 13 | 223,566 |
| 14 | 228,633 |
| 15 | 232,913 |
| 16 | 234,646 |
| 17 | 235,907 |
| 18 | 236,054 |
| 19 | 236,532 |
| 20 | 236,695 |
| 21 | 239,375 |
| 22 | 239,475 |
| 23 | 240,806 |
| 24 | 244,828 |
| 25 | 245,583 |
| 26 | 246,979 |
| 27 | 247,106 |
| 28 | 249,058 |
| 29 | 255,977 |
| 30 | 256,726 |
| 31 | 258,433 |
| 32 | 258,587 |
| 33 | 258,709 |
| 34 | 259,339 |
| 35 | 263,611 |
| 36 | 266,541 |
| 37 | 266,651 |
| 38 | 268,200 |
| 39 | 269,492 |
| 40 | 273,911 |
| 41 | 275,643 |
| 42 | 278,475 |
| 43 | 279,040 |
| 44 | 279,174 |
| 45 | 280,846 |
| 46 | 283,918 |
| 47 | 284,487 |
| 48 | 288,658 |
| 49 | 290,435 |
| 50 | 290,458 |
| 51 | 291,081 |
| 52 | 291,182 |
| 53 | 293,192 |
| 54 | 296,459 |
| 55 | 297,186 |
| 56 | 297,971 |
| 57 | 301,040 |
| 58 | 303,224 |
| 59 | 304,040 |
| 60 | 311,145 |
| 61 | 312,951 |
| 62 | 313,953 |
| 63 | 317,486 |
| 64 | 324,013 |
| 65 | 328,384 |
| 66 | 329,476 |
| 67 | 330,010 |
| 68 | 330,051 |
| 69 | 331,450 |
| 70 | 331,641 |
| 71 | 332,199 |
| 72 | 332,744 |
| 73 | 334,365 |
| 74 | 337,402 |
| 75 | 340,568 |
| 76 | 341,572 |
| 77 | 342,989 |
| 78 | 343,947 |
| 79 | 344,052 |
| 80 | 344,350 |
| 81 | 346,094 |
| 82 | 347,033 |
| 83 | 348,539 |
| 84 | 352,222 |
| 85 | 353,011 |
| 86 | 360,221 |
| 87 | 362,044 |
| 88 | 363,128 |
| 89 | 364,564 |
| 90 | 364,676 |
| 91 | 365,058 |
| 92 | 366,611 |
| 93 | 367,070 |
| 94 | 367,738 |
| 95 | 367,991 |
| 96 | 369,600 |
| 97 | 372,453 |
| 98 | 373,228 |
| 99 | 375,426 |
| 100 | 375,523 |
| 101 | 375,593 |
| 102 | 375,594 |
| 103 | 375,723 |
| 104 | 377,545 |
| 105 | 377,858 |
| 106 | 380,631 |
| 107 | 380,756 |
| 108 | 384,224 |
| 109 | 393,315 |
| 110 | 393,803 |
| 111 | 395,000 |
| 112 | 396,187 |
| 113 | 400,050 |
| 114 | 403,552 |
| 115 | 406,683 |
| 116 | 407,575 |
| 117 | 409,731 |
| 118 | 412,745 |
| 119 | 414,739 |
| 120 | 422,582 |
| 121 | 423,801 |
| 122 | 426,113 |
| 123 | 426,242 |
| 124 | 426,347 |
| 125 | 429,826 |
| 126 | 431,405 |
| 127 | 433,609 |
| 128 | 434,295 |
| 129 | 434,694 |
| 130 | 435,712 |
| 131 | 439,255 |
| 132 | 442,390 |
| 133 | 442,662 |
| 134 | 444,720 |
| 135 | 448,161 |
| 136 | 451,640 |
| 137 | 451,662 |
| 138 | 452,277 |
| 139 | 452,734 |
| 140 | 454,077 |
| 141 | 454,949 |
| 142 | 457,019 |
| 143 | 457,456 |
| 144 | 459,372 |
| 145 | 461,818 |
| 146 | 462,356 |
| 147 | 466,251 |
| 148 | 469,585 |
| 149 | 472,790 |
| 150 | 473,753 |
| 151 | 476,582 |
| 152 | 479,868 |
| 153 | 482,000 |
| 154 | 482,691 |
| 155 | 489,659 |
| 156 | 493,088 |
| 157 | 495,394 |
| 158 | 495,633 |
| 159 | 496,713 |
| 160 | 497,893 |
| 161 | 500,615 |
| 162 | 502,794 |
| 163 | 519,466 |
| 164 | 522,012 |
| 165 | 525,831 |
| 166 | 528,349 |
| 167 | 536,902 |
| 168 | 542,540 |
| 169 | 544,723 |
| 170 | 554,626 |
| 171 | 556,798 |
| 172 | 557,690 |
| 173 | 559,089 |
| 174 | 564,538 |
| 175 | 576,789 |
| 176 | 581,815 |
| 177 | 583,572 |
| 178 | 621,110 |
| 179 | 625,000 |
| 180 | 632,612 |
| 181 | 636,068 |
| 182 | 648,363 |
| 183 | 673,742 |
| 184 | 686,461 |
| 185 | 712,740 |
| 186 | 776,145 |
| 187 | 780,000 |
| 188 | 800,350 |
| 189 | 806,701 |
| 190 | 859,707 |
| 191 | 877,764 |
| 192 | 920,000 |
| 193 | 951,336 |
| 194 | 1,005,103 |
| 195 | 1,052,824 |
| 196 | 1,113,770 |
| 197 | 1,310,311 |
| 198 | 1,332,051 |
| 199 | 1,340,394 |
| 200 | 1,458,183 |
total sum =ΣX= 85045831 ,
n= 200
mean = ΣX/n =
425229.155
Q2 , Median=0.5(n+1)th value = 0.5*201 =
100.5 value of sorted data = 0.5*(100th +101th value )
= 375558
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mean>median , data is right skewed
mean <median ,data is left skewed
mean=median , data is symmetric
as we can that mean is greater than median , it means, data is not symmetric
It is skewed to right.