2009 Confidence Interval Detail
057/Dallas
057-903/Carrollton-Farmers Branch ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 850,642,780 | 0.9877 | 861,235,983 | 50 | 7,140 | .002636921 |
| A | 873,110,880 | 0.9529 | 916,267,058 | 50 | 4,948 | .024115992 |
| A | 932,352,440 | 0.9748 | 956,455,109 | 50 | 3,760 | .002590204 |
| A | 899,981,630 | 0.9656 | 932,043,942 | 50 | 2,257 | .005891236 |
| B | 335,461,290 | 0.9197 | 364,750,777 | 6 | 50 | .014202536 |
| B | 335,986,090 | 0.9995 | 336,154,167 | 5 | 21 | .002115079 |
| B | 318,198,930 | 0.9619 | 330,802,505 | 5 | 14 | .002857728 |
| B | 335,631,240 | 1.0154 | 330,540,910 | 4 | 10 | .001584333 |
| C | 109,588,500 | 0.9512 | 115,210,786 | 7 | 1,084 | .030494904 |
| C | 87,288,900 | 0.9543 | 91,469,035 | 7 | 91 | .025605738 |
| C | 88,072,590 | 1.0574 | 83,291,649 | 6 | 34 | .021724939 |
| C | 72,184,920 | 1.0031 | 71,961,838 | 5 | 11 | .004057877 |
| F1 | 1,095,059,710 | 0.9610 | 1,139,500,219 | 8 | 674 | .008644156 |
| F1 | 1,006,688,270 | 0.9160 | 1,099,004,662 | 8 | 200 | .011230813 |
| F1 | 954,999,120 | 1.0089 | 946,574,606 | 7 | 76 | .006657118 |
| F1 | 811,078,850 | 0.9580 | 846,637,630 | 6 | 27 | .006786046 |
| L1 | 527,866,390 | 1.0672 | 494,627,427 | 7 | 1,089 | .026773918 |
| L1 | 541,849,600 | 1.0471 | 517,476,459 | 7 | 164 | .004753530 |
| L1 | 482,198,840 | 1.0868 | 443,686,824 | 7 | 45 | .025774187 |
| L1 | 637,929,050 | 1.0133 | 629,555,956 | 3 | 6 | .000939912 |
| Random Totals: | 11,296,170,020 | 11,507,247,542 | 298 | 21,701 | ||
| Catg D1 Exception Values: | 55,635 | 73,934 | ||||
| Total Test Values (4): | 11,296,225,655 | 11,507,321,476 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 575,366,074 |
Confidence Interval Values (5)
| State Lower Limit: | 10,931,955,402 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 11,296,225,655 | (Within Confidence Interval) |
| State Upper Limit: | 12,082,687,550 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 10,849,466,728 | (See ISD Summary Worksheet) |
Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories