2007 Confidence Interval Detail
057/Dallas
057-913/Lancaster ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 258,256,701 | 0.8978 | 287,655,047 | 23 | 2,860 | .079415211 |
| A | 259,015,079 | 0.9618 | 269,302,432 | 20 | 2,169 | .008509552 |
| A | 258,557,651 | 0.9834 | 262,922,159 | 25 | 1,820 | .002773828 |
| A | 257,173,768 | 1.0196 | 252,230,059 | 24 | 1,365 | .002785366 |
| F1 | 60,918,551 | 0.8970 | 67,913,658 | 8 | 160 | .046491437 |
| F1 | 63,388,775 | 0.8980 | 70,588,836 | 7 | 34 | .039930187 |
| F1 | 60,638,614 | 0.6855 | 88,458,956 | 4 | 9 | .296251794 |
| F1 | 57,329,949 | 0.9116 | 62,889,369 | 3 | 4 | .005452532 |
| L1 | 24,558,454 | 1.1211 | 21,905,677 | 7 | 183 | .015377306 |
| L1 | 25,294,661 | 1.3150 | 19,235,484 | 7 | 28 | .081920921 |
| L1 | 28,888,419 | 1.0042 | 28,767,595 | 4 | 8 | .000342687 |
| Random Totals: | 1,354,020,622 | 1,431,869,272 | 132 | 8,640 | ||
| Catg J Exception Values: | 70,976,387 | 70,890,264 | ||||
| Catg D1 Exception Values: | 1,376,530 | 1,707,089 | ||||
| Catg L1 Exception Values: | 15,822,310 | 16,110,704 | ||||
| Total Test Values (4): | 1,442,195,849 | 1,520,577,329 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 76,028,866 |
Confidence Interval Values (5)
| Local Test Value: | 1,442,195,849 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 1,444,548,463 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 1,596,606,195 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,687,059,196 | (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