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Galveston County
2019 Confidence Interval Detail
Galveston County
084-903/High Island ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 16,688,922 | 0.7457 | 22,380,209 | 10 | 224 | 0.109077530 |
| A | 19,986,850 | 1.0020 | 19,946,956 | 10 | 104 | 0.020690349 |
| A | 19,195,970 | 0.9947 | 19,298,251 | 8 | 65 | 0.015785207 |
| A | 30,073,735 | 1.1617 | 25,887,695 | 10 | 60 | 0.030642436 |
| C1 | 10,241,224 | 0.7808 | 13,116,322 | 9 | 753 | 0.072697699 |
| C1 | 6,440,632 | 0.8458 | 7,614,840 | 11 | 261 | 0.145976392 |
| C1 | 7,580,529 | 0.9198 | 8,241,497 | 9 | 138 | 0.035757091 |
| C1 | 8,930,950 | 1.0823 | 8,251,825 | 8 | 58 | 0.104946867 |
| E | 7,558,331 | 1.0912 | 6,926,623 | 16 | 203 | 0.031354529 |
| Random Totals: | 126,697,143 | 131,664,218 | 91 | 1,866 | ||
| CATG D1 EXCEPTION VALUES: | 7,900 | 7,991 | ||||
| Total Test Values(1) | 126,705,043 | 131,672,209 |
Margin of Error
| Margin of Error Percent: | 5.1207540 |
|---|---|
| Margin of Error Value: | 6,742,610 |
Confidence Interval Values(5)
| Local Test Value: | 126,705,043 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 124,929,599 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 138,414,819 | (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