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 | 258,074,970 | 0.9986 | 258,436,781 | 20 | 2,860 | .000976081 |
| A | 258,832,815 | 0.9700 | 266,837,954 | 19 | 2,169 | .007519725 |
| A | 258,375,709 | 0.9834 | 262,737,146 | 25 | 1,820 | .002773828 |
| A | 256,992,800 | 1.0196 | 252,052,570 | 24 | 1,365 | .002785366 |
| F1 | 60,732,459 | 0.9558 | 63,540,970 | 8 | 160 | .014927731 |
| F1 | 63,195,137 | 0.9310 | 67,878,772 | 7 | 34 | .021156635 |
| F1 | 60,453,377 | 0.7356 | 82,182,405 | 4 | 9 | .168376167 |
| F1 | 57,154,819 | 0.9116 | 62,697,256 | 3 | 4 | .005452532 |
| L1 | 24,951,813 | 1.1211 | 22,256,545 | 7 | 183 | .015377306 |
| L1 | 25,699,812 | 1.3150 | 19,543,583 | 7 | 28 | .081920921 |
| L1 | 29,351,133 | 1.0042 | 29,228,374 | 4 | 8 | .000342687 |
| Random Totals: | 1,353,814,844 | 1,387,392,356 | 128 | 8,640 | ||
| Catg J Exception Values: | 70,976,387 | 70,890,264 | ||||
| Catg D1 Exception Values: | 1,376,530 | 1,703,852 | ||||
| Catg L1 Exception Values: | 15,822,310 | 16,110,704 | ||||
| Total Test Values (4): | 1,441,990,071 | 1,476,097,176 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 73,804,859 |
Confidence Interval Values (5)
| State Lower Limit: | 1,402,292,317 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,441,990,071 | (Within Confidence Interval) |
| State Upper Limit: | 1,549,902,035 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,661,997,964 | (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