Question: EXCEL PROBLEM SET 2 Z-SCORES Using the Week 2 Z Scores Excel data file and Appendix A of the book, report your results on the
EXCEL PROBLEM SET 2
Z-SCORES
Using the Week 2 Z Scores Excel data file and Appendix A of the book, report your results on the following prompts below.
| Statewide | Average Median Home Price in 2021 | Average Monthly Payment in 2021 |
| Average | $182,158 | $691 |
| Std Dev | $68,646 | $260 |
- What percentage of cases falls between +.25 SD and -.25 SD in the population?
- Using the Excel data file, what percentage of the 82 sampled counties would we expect to have a median home price of $150,000 or greater in 2021?
- Calculate the Z scores for the average median home price in 2021 for all 82 sampled counties. Which county has the largest Z score?
- Calculate the Z scores for the average median home price in 2021 for all 82 sampled counties. Which county has the smallest Z score?
PROBLEM SET 2
| County | Median Home Price 2021 | Monthly home payment 2021 | Monthly home payment 2020 |
| Alamance | 190587 | 723 | 665 |
| Alexander | 155520 | 590 | 553 |
| Anson | 106949 | 406 | 372 |
| Ashe | 174029 | 660 | 620 |
| Avery | 163579 | 621 | 583 |
| Beaufort | 150856 | 572 | 537 |
| Brunswick | 279779 | 1062 | 976 |
| Buncombe | 315927 | 1199 | 1111 |
| Burke | 161559 | 613 | 574 |
| Cabarrus | 295283 | 1120 | 1028 |
| Caldwell | 149368 | 567 | 531 |
| Camden | 237189 | 900 | 845 |
| Caswell | 128137 | 486 | 456 |
| Catawba | 175003 | 664 | 622 |
| Cherokee | 180732 | 686 | 644 |
| Chowan | 148925 | 565 | 530 |
| Cleveland | 152787 | 580 | 544 |
| Columbus | 100987 | 383 | 360 |
| Craven | 173575 | 659 | 618 |
| Cumberland | 156003 | 592 | 566 |
| Currituck | 290720 | 1103 | 1047 |
| Dare | 328293 | 1246 | 1169 |
| Davidson | 175733 | 667 | 626 |
| Davie | 197770 | 750 | 702 |
| Duplin | 102464 | 389 | 365 |
| Durham | 283105 | 1074 | 1011 |
| Edgecombe | 97722 | 371 | 340 |
| Forsyth | 195020 | 740 | 692 |
| Franklin | 198264 | 752 | 700 |
| Gaston | 194901 | 740 | 679 |
| Gates | 167782 | 637 | 598 |
| Graham | 138928 | 527 | 495 |
| Granville | 177210 | 672 | 631 |
| Greene | 100511 | 381 | 357 |
| Guilford | 209953 | 797 | 744 |
| Halifax | 98034 | 372 | 349 |
| Harnett | 186752 | 709 | 665 |
| Haywood | 206144 | 782 | 725 |
| Henderson | 289427 | 1098 | 1018 |
| Hertford | 100646 | 382 | 358 |
| Iredell | 244271 | 927 | 851 |
| Jackson | 222762 | 845 | 793 |
| Johnston | 231901 | 880 | 818 |
| Lee | 163806 | 622 | 583 |
| Lenoir | 108484 | 412 | 386 |
| Lincoln | 237117 | 900 | 826 |
| Macon | 188115 | 714 | 670 |
| Madison | 223122 | 847 | 785 |
| Martin | 105077 | 399 | 374 |
| Mcdowell | 135407 | 514 | 482 |
| Mecklenburg | 318384 | 1208 | 1109 |
| Mitchell | 178800 | 678 | 637 |
| Montgomery | 133703 | 507 | 476 |
| Moore | 264111 | 1002 | 941 |
| Nash | 148122 | 562 | 516 |
| New Hanover | 313097 | 1188 | 1092 |
| Onslow | 187799 | 713 | 645 |
| Orange | 389113 | 1476 | 1390 |
| Pamlico | 177210 | 672 | 631 |
| Pender | 230673 | 875 | 804 |
| Perquimans | 195726 | 743 | 697 |
| Pitt | 176632 | 670 | 628 |
| Randolph | 149458 | 567 | 530 |
| Robeson | 83607 | 317 | 298 |
| Rockingham | 130403 | 495 | 462 |
| Rowan | 186105 | 706 | 648 |
| Rutherford | 145062 | 550 | 517 |
| Sampson | 101441 | 385 | 361 |
| Scotland | 97125 | 369 | 346 |
| Stanly | 157785 | 599 | 562 |
| Surry | 153469 | 582 | 547 |
| Swain | 158012 | 600 | 563 |
| Transylvania | 252070 | 956 | 898 |
| Tyrrell | 130408 | 495 | 464 |
| Union | 320847 | 1217 | 1117 |
| Vance | 115187 | 437 | 410 |
| Wake | 363694 | 1380 | 1283 |
| Washington | 97011 | 368 | 346 |
| Watauga | 270359 | 1026 | 963 |
| Wilkes | 156876 | 595 | 559 |
| Wilson | 156990 | 596 | 559 |
| Yadkin | 152510 | 579 | 541 |
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