Top navigation skipped
Williamson County
2020 Confidence Interval Detail
Williamson County
246-914/Coupland ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,873,937 | 0.6757 | 11,653,007 | 9 | 99 | 0.056234327 |
| A | 8,303,500 | 0.9348 | 8,882,649 | 10 | 59 | 0.098107467 |
| A | 8,229,901 | 0.9780 | 8,415,032 | 8 | 39 | 0.068878650 |
| A | 9,167,700 | 1.0043 | 9,128,448 | 7 | 24 | 0.025269209 |
| E | 58,109,963 | 0.9983 | 58,208,918 | 25 | 453 | 0.034865613 |
| Random Totals: | 91,685,001 | 96,288,054 | 59 | 674 | ||
| CATG D1 EXCEPTION VALUES: | 3,279,637 | 4,678,993 | ||||
| CATG J EXCEPTION VALUES: | 4,180,311 | 4,709,215 | ||||
| Total Test Values | 99,144,949 | 105,676,262 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 5,283,813 |
Confidence Interval Values(5)
| Local Test Value: | 99,144,949 | OUTSIDE CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 100,392,449 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 110,960,075 | (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