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.