2006 Confidence Interval Detail
253/Zapata
253-901/Zapata ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 36,677,055 | 0.8932 | 41,062,534 | 10 | 1,968 | .021777403 |
| A | 36,695,211 | 0.9691 | 37,865,247 | 9 | 1,030 | .031155501 |
| A | 36,681,283 | 0.8512 | 43,093,613 | 9 | 610 | .019944278 |
| A | 36,628,442 | 0.9357 | 39,145,497 | 7 | 312 | .003256219 |
| G1 | 690,639,487 | 1.0088 | 684,614,876 | 10 | 839 | .047786561 |
| G1 | 691,273,267 | 1.1706 | 590,529,017 | 10 | 323 | .043320509 |
| G1 | 691,680,085 | 1.1678 | 592,293,274 | 9 | 174 | .094643205 |
| G1 | 686,651,739 | 1.1377 | 603,543,763 | 9 | 78 | .022088106 |
| Random Totals: | 2,906,926,569 | 2,632,147,821 | 73 | 5,334 | ||
| Catg D1 Exception Values: | 25,694,642 | 48,097,803 | ||||
| Total Test Values (4): | 2,932,621,211 | 2,680,245,624 |
Margin of Error
| Margin of Error Percent: | 6.6488600 |
|---|---|
| Margin of Error Value: | 178,205,778 |
Confidence Interval Values (5)
| State Lower Limit: | 2,502,039,846 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| State Upper Limit: | 2,858,451,402 | (State Test Value plus Margin of Error Percent) |
| Local Test Value: | 2,932,621,211 | (Outside Confidence Interval) |
| Value Assigned (6): | 3,285,314,134 | (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