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Willacy County
2019 Confidence Interval Detail
Willacy County
245-904/San Perlita ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 12,885,700 | 0.8225 | 15,666,505 | 15 | 290 | 0.034109008 |
| A | 12,913,994 | 0.9234 | 13,985,265 | 15 | 136 | 0.137117149 |
| A | 13,410,978 | 1.0087 | 13,295,309 | 14 | 88 | 0.053730667 |
| A | 12,369,835 | 1.2135 | 10,193,519 | 11 | 50 | 0.004845552 |
| L1 | 1,373,543 | 1.0252 | 1,339,781 | 8 | 31 | 0.002482527 |
| L1 | 199,739,472 | 1.0000 | 199,739,472 | 1 | 1 | 0.000000000 |
| Random Totals: | 252,693,522 | 254,219,851 | 64 | 596 | ||
| CATG D1 EXCEPTION VALUES: | 14,750,444 | 18,707,849 | ||||
| CATG J EXCEPTION VALUES: | 6,460,190 | 6,560,692 | ||||
| Total Test Values(2) | 273,904,156 | 279,488,392 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 13,974,420 |
Confidence Interval Values(5)
| Local Test Value: | 273,904,156 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 265,513,972 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 293,462,812 | (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