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Webb County
2021 Confidence Interval Detail
Webb County
240-904/Webb CISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,716,371 | 0.8632 | 5,463,822 | 10 | 179 | 0.005503682 |
| A | 4,500,878 | 0.8784 | 5,123,950 | 10 | 88 | 0.003690376 |
| A | 4,570,417 | 0.8189 | 5,581,166 | 9 | 51 | 0.005991897 |
| A | 5,210,130 | 0.8707 | 5,983,841 | 8 | 36 | 0.002981283 |
| E | 69,601,820 | 1.1715 | 59,412,565 | 10 | 1,000 | 0.054619286 |
| G1 | 32,079,723 | 1.0597 | 30,272,457 | 14 | 457 | 0.065311738 |
| G1 | 32,072,081 | 1.2392 | 25,881,279 | 13 | 135 | 0.200781150 |
| G1 | 32,248,351 | 1.3430 | 24,012,175 | 12 | 71 | 0.053338330 |
| G1 | 31,361,306 | 1.0668 | 29,397,550 | 10 | 35 | 0.037215439 |
| Random Totals: | 216,361,077 | 191,128,805 | 96 | 2,052 | ||
| CATG D1 EXCEPTION VALUES: | 26,425,663 | 32,910,798 | ||||
| CATG J EXCEPTION VALUES: | 28,724,305 | 29,465,232 | ||||
| Total Test Values | 271,511,045 | 253,504,835 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 12,675,242 |
Confidence Interval Values(5)
| Local Test Value: | 271,511,045 | OUTSIDE CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 240,829,593 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 266,180,077 | (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