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Williamson County
2020 Confidence Interval Detail
Williamson County
246-907/Jarrell ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 383,916,368 | 0.9694 | 396,035,040 | 24 | 2,129 | 0.000754311 |
| A | 369,972,601 | 0.9695 | 381,611,760 | 25 | 1,584 | 0.001980584 |
| A | 334,185,283 | 0.9507 | 351,514,971 | 23 | 1,094 | 0.003314315 |
| A | 275,385,856 | 0.9582 | 287,399,140 | 23 | 593 | 0.001165172 |
| E | 166,781,116 | 0.9288 | 179,566,232 | 9 | 763 | 0.015696612 |
| F1 | 29,875,666 | 0.9256 | 32,277,081 | 10 | 79 | 0.041484748 |
| F1 | 27,096,082 | 0.9930 | 27,287,092 | 8 | 28 | 0.006684973 |
| F1 | 30,264,970 | 0.8337 | 36,301,991 | 7 | 15 | 0.040527711 |
| F1 | 31,170,646 | 0.9449 | 32,988,301 | 4 | 6 | 0.001482494 |
| Random Totals: | 1,648,648,588 | 1,724,981,608 | 133 | 6,291 | ||
| CATG D1 EXCEPTION VALUES: | 2,691,442 | 3,197,053 | ||||
| Total Test Values | 1,651,340,030 | 1,728,178,661 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 86,408,933 |
Confidence Interval Values(5)
| Local Test Value: | 1,651,340,030 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 1,641,769,728 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 1,814,587,594 | (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