2007 Confidence Interval Detail
008/Austin
008-901/Bellville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 73,603,144 | 0.9180 | 80,177,717 | 20 | 952 | .030780327 |
| A | 73,464,290 | 0.9526 | 77,119,767 | 27 | 571 | .021775856 |
| A | 73,651,991 | 0.9957 | 73,970,062 | 22 | 411 | .009521785 |
| A | 73,371,952 | 0.9503 | 77,209,252 | 21 | 250 | .014684215 |
| D3 | 345,032,536 | 0.9977 | 345,827,940 | 39 | 13,502 | .046300828 |
| G1 | 10,039,190 | 0.6337 | 15,842,181 | 6 | 28 | .154924434 |
| G1 | 10,812,410 | 1.3210 | 8,185,019 | 4 | 10 | .086607024 |
| G1 | 9,883,359 | 1.0048 | 9,836,146 | 3 | 4 | .009378641 |
| Random Totals: | 669,858,872 | 688,168,084 | 142 | 15,728 | ||
| Catg J Exception Values: | 21,269,759 | 21,598,633 | ||||
| Catg D1 Exception Values: | 24,408,970 | 20,209,207 | ||||
| Catg G1 Exception Values: | 8,650,030 | 7,498,298 | ||||
| Total Test Values (4): | 724,187,631 | 737,474,222 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 36,873,711 |
Confidence Interval Values (5)
| State Lower Limit: | 700,600,511 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 724,187,631 | (Within Confidence Interval) |
| State Upper Limit: | 774,347,933 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 757,702,443 | (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