2008 Confidence Interval Detail
020/Brazoria
020-906/Sweeny ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 68,678,203 | 1.0166 | 67,556,761 | 30 | 1,212 | .080385479 |
| A | 69,713,960 | 1.0035 | 69,470,812 | 16 | 728 | .007045173 |
| A | 69,834,270 | 1.0201 | 68,458,259 | 24 | 512 | .012144958 |
| A | 74,286,450 | 0.9754 | 76,159,986 | 18 | 328 | .000912000 |
| D3 | 49,869,157 | 0.8898 | 56,045,355 | 20 | 2,332 | .073747953 |
| G1 | 76,913,197 | 1.0345 | 74,348,185 | 14 | 34 | .067366095 |
| Random Totals: | 409,295,237 | 412,039,358 | 122 | 5,146 | ||
| Catg J Exception Values: | 12,587,023 | 12,482,747 | ||||
| Catg D1 Exception Values: | 3,538,900 | 3,857,570 | ||||
| Catg G1 Exception Values: | 76,827,456 | 79,182,603 | ||||
| Total Test Values (4): | 502,248,616 | 507,562,278 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 25,378,114 |
Confidence Interval Values (5)
| State Lower Limit: | 482,184,164 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 502,248,616 | (Within Confidence Interval) |
| State Upper Limit: | 532,940,392 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,581,406,141 | (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