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Williamson County
2022 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 | 6,781,922 | 0.8902 | 7,618,425 | 15 | 67 | 0.050599156 |
| A | 10,748,688 | 0.8940 | 12,023,141 | 15 | 67 | 0.131138284 |
| A | 28,389,069 | 1.0352 | 27,423,753 | 15 | 113 | 0.068401640 |
| A | 52,738,092 | 1.1280 | 46,753,628 | 12 | 108 | 0.015620498 |
| E | 127,700,722 | 1.0887 | 117,296,521 | 20 | 525 | 0.123428859 |
| Random Totals: | 226,358,493 | 211,115,468 | 77 | 880 | ||
| CATG D1 EXCEPTION VALUES: | 4,787,020 | 4,820,131 | ||||
| CATG J EXCEPTION VALUES: | 6,214,373 | 6,961,035 | ||||
| Total Test Values | 237,359,886 | 222,896,634 |
Margin of Error
| Margin of Error Percent: | 8.3893268 |
|---|---|
| Margin of Error Value: | 18,699,527 |
Confidence Interval Values(5)
| Local Test Value: | 237,359,886 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 204,197,107 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 241,596,161 | (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