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Williamson County
2024 Confidence Interval Detail
Williamson County
246-912/Thrall 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 | 55,711,479 | 0.9925 | 56,132,473 | 12 | 317 | 0.118296233 |
| A | 3 | 58,757,981 | 1.0051 | 58,459,836 | 12 | 207 | 0.025474194 |
| A | 4 | 52,284,651 | 0.9735 | 53,707,911 | 12 | 135 | 0.036685742 |
| A | 5 | 56,407,936 | 0.9629 | 58,581,302 | 12 | 91 | 0.040704584 |
| E | 0 | 309,882,207 | 0.9908 | 312,759,595 | 21 | 1,058 | 0.032212736 |
| Random Totals: | 533,044,254 | 539,641,117 | 69 | 1,808 | |||
| CATG D1 EXCEPTION VALUES: | 23,660,722 | 21,131,471 | |||||
| CATG J EXCEPTION VALUES: | 10,231,954 | 10,821,534 | |||||
| Total Test Values | 566,936,930 | 571,594,122 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 28,579,706 |
Confidence Interval Values(5)
| Local Test Value: | 566,936,930 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 543,014,416 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 600,173,828 | (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