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Willacy County
2021 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 | 14,077,935 | 0.4861 | 28,960,985 | 10 | 300 | 0.196722560 |
| A | 14,734,747 | 0.6341 | 23,237,261 | 10 | 147 | 0.061584426 |
| A | 15,618,525 | 0.7361 | 21,217,939 | 9 | 98 | 0.032016052 |
| A | 13,245,805 | 0.7820 | 16,938,370 | 9 | 52 | 0.149487460 |
| Random Totals: | 57,677,012 | 90,354,555 | 38 | 597 | ||
| CATG D1 EXCEPTION VALUES: | 14,609,732 | 16,465,417 | ||||
| CATG J EXCEPTION VALUES: | 13,063,950 | 13,690,463 | ||||
| Total Test Values | 85,350,694 | 120,510,435 |
Margin of Error
| Margin of Error Percent: | 8.3281681 |
|---|---|
| Margin of Error Value: | 10,036,312 |
Confidence Interval Values(5)
| Local Test Value: | 85,350,694 | OUTSIDE CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 110,474,123 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 130,546,747 | (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