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Galveston County
2025 Confidence Interval Detail
Galveston County
084-903/High Island ISD
Category Summary
| (1) Category |
(1) Stratum Number |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|---|
| A | 2 | 71,690,425 | 1.1015 | 65,084,362 | 15 | 245 | 7,395,916,575 |
| A | 3 | 79,189,787 | 0.9960 | 79,507,818 | 15 | 158 | 12,570,060,260 |
| A | 4 | 68,900,411 | 1.0454 | 65,908,180 | 16 | 95 | 28,037,701,365 |
| A | 5 | 67,965,438 | 1.0156 | 66,921,463 | 15 | 55 | 246,163,931,495 |
| C1 | 2 | 32,790,548 | 1.2982 | 25,258,472 | 15 | 639 | 185,050,426 |
| C1 | 3 | 35,179,682 | 1.3651 | 25,770,773 | 15 | 425 | 557,581,331 |
| C1 | 4 | 28,557,192 | 1.1031 | 25,888,126 | 15 | 204 | 5,247,347,182 |
| C1 | 5 | 54,343,670 | 1.0755 | 50,528,749 | 15 | 135 | 15,734,712,525 |
| E | 0 | 99,565,427 | 0.9069 | 109,786,555 | 10 | 541 | 4,289,530,214 |
| Random Totals: | 538,182,580 | 514,654,498 | 131 | 2,497 | |||
| CATG D1 EXCEPTION VALUES: | 135,603 | 158,327 | |||||
| Total Test Values | 538,318,183 | 514,812,825 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 25,740,641 |
Confidence Interval Values(5)
| Local Test Value: | 538,318,183 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 489,072,184 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 540,553,466 | (State Test Value plus Margin of Error Percent) |
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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values