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Williamson County
2024 Confidence Interval Detail
Williamson County
246-914/Coupland 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 | 32,026,471 | 1.0597 | 30,222,205 | 12 | 179 | 0.066417081 |
| A | 3 | 35,130,830 | 0.9600 | 36,594,615 | 12 | 108 | 0.044225216 |
| A | 4 | 22,072,349 | 0.9961 | 22,158,768 | 12 | 46 | 0.103695614 |
| A | 5 | 26,183,680 | 1.0963 | 23,883,681 | 12 | 34 | 0.025704620 |
| E | 0 | 129,113,607 | 1.0286 | 125,523,631 | 20 | 445 | 0.057119200 |
| L1 | 2 | 1,115,470 | 1.0079 | 1,106,727 | 8 | 27 | 0.002581111 |
| Random Totals: | 245,642,407 | 239,489,627 | 76 | 839 | |||
| CATG D1 EXCEPTION VALUES: | 6,266,588 | 5,605,843 | |||||
| CATG J EXCEPTION VALUES: | 5,471,499 | 5,778,724 | |||||
| CATG L1 EXCEPTION VALUES: | 54,690,834 | 54,690,833 | |||||
| Total Test Values | 312,071,328 | 305,565,027 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 15,278,251 |
Confidence Interval Values(5)
| Local Test Value: | 312,071,328 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 290,286,776 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 320,843,278 | (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