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Galveston County
2025 Confidence Interval Detail
Galveston County
084-911/Friendswood 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 | 1,298,820,972 | 0.9868 | 1,316,194,743 | 114 | 3,473 | 8,697,756,103 |
| A | 3 | 1,376,431,885 | 0.9817 | 1,402,090,134 | 94 | 2,496 | 6,399,479,232 |
| A | 4 | 1,406,755,957 | 0.9844 | 1,429,049,123 | 90 | 1,925 | 18,550,210,556 |
| A | 5 | 1,435,144,929 | 0.9780 | 1,467,428,353 | 47 | 1,183 | 392,786,763,239 |
| F1 | 2 | 105,449,468 | 0.8527 | 123,665,378 | 13 | 131 | 152,404,005,398 |
| F1 | 3 | 112,279,583 | 0.9047 | 124,106,978 | 9 | 67 | 367,491,661,238 |
| F1 | 4 | 128,930,190 | 0.8741 | 147,500,503 | 8 | 40 | 965,181,343,660 |
| F1 | 5 | 87,443,500 | 0.7173 | 121,906,455 | 6 | 10 | 89,558,522,956,992 |
| Random Totals: | 5,951,256,484 | 6,131,941,667 | 381 | 9,325 | |||
| CATG D1 EXCEPTION VALUES: | 82,300 | 85,702 | |||||
| Total Test Values | 5,951,338,784 | 6,132,027,369 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 306,601,368 |
Confidence Interval Values(5)
| Local Test Value: | 5,951,338,784 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 5,825,426,001 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 6,438,628,737 | (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