2007 Confidence Interval Detail
057/Dallas
057-905/Dallas ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 9,317,718,991 | 0.9974 | 9,342,008,212 | 90 | 99,964 | .005430232 |
| A | 9,318,092,134 | 0.9877 | 9,434,131,957 | 97 | 46,926 | .008481390 |
| A | 9,317,347,941 | 0.9903 | 9,408,611,472 | 92 | 22,545 | .001407355 |
| A | 9,316,875,473 | 0.9896 | 9,414,789,282 | 98 | 7,674 | .003218257 |
| B | 1,684,791,052 | 0.7121 | 2,365,947,271 | 20 | 5,904 | .236208870 |
| B | 1,685,232,901 | 0.9754 | 1,727,735,187 | 7 | 423 | .006693032 |
| B | 1,698,343,786 | 0.9394 | 1,807,902,689 | 7 | 137 | .005584902 |
| B | 1,668,169,053 | 0.9869 | 1,690,312,142 | 6 | 46 | .003827338 |
| C | 489,983,618 | 0.8654 | 566,193,226 | 12 | 12,035 | .047620376 |
| C | 491,168,829 | 0.8630 | 569,141,169 | 11 | 1,542 | .059489497 |
| C | 488,301,830 | 0.8271 | 590,378,225 | 9 | 452 | .012349987 |
| C | 487,078,002 | 1.0311 | 472,386,773 | 7 | 113 | .047025656 |
| F1 | 5,899,908,708 | 0.6492 | 9,087,967,819 | 22 | 6,227 | .189308475 |
| F1 | 5,895,969,474 | 0.7655 | 7,702,115,577 | 11 | 1,134 | .093256175 |
| F1 | 5,917,754,643 | 0.8975 | 6,593,598,488 | 13 | 289 | .031349641 |
| F1 | 5,876,103,552 | 0.9309 | 6,312,282,256 | 10 | 54 | .017362946 |
| L1 | 2,247,114,218 | 1.1003 | 2,042,274,123 | 7 | 9,481 | .026173661 |
| L1 | 2,249,336,971 | 1.0591 | 2,123,819,253 | 7 | 1,315 | .009897084 |
| L1 | 2,248,715,555 | 1.0127 | 2,220,515,014 | 7 | 352 | .010997653 |
| L1 | 2,241,869,101 | 1.0031 | 2,234,940,785 | 6 | 74 | .000080574 |
| Random Totals: | 78,539,875,832 | 85,707,050,920 | 539 | 216,687 | ||
| Catg D1 Exception Values: | 3,614,770 | 4,048,619 | ||||
| Total Test Values (4): | 78,543,490,602 | 85,711,099,539 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,285,554,977 |
Confidence Interval Values (5)
| Local Test Value: | 78,543,490,602 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 81,425,544,562 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 89,996,654,516 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 78,344,587,379 | (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