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Williamson County
2020 Confidence Interval Detail
Williamson County
246-905/Granger ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 21,227,625 | 1.1131 | 19,070,726 | 17 | 265 | 0.050442766 |
| A | 21,014,674 | 1.0088 | 20,831,358 | 19 | 153 | 0.013616637 |
| A | 21,998,627 | 0.9540 | 23,059,357 | 17 | 109 | 0.017345264 |
| A | 17,733,749 | 1.0009 | 17,717,803 | 15 | 50 | 0.027849359 |
| E | 75,072,995 | 0.9520 | 78,858,188 | 19 | 622 | 0.021625914 |
| Random Totals: | 157,047,670 | 159,537,432 | 87 | 1,199 | ||
| CATG D1 EXCEPTION VALUES: | 8,622,837 | 13,882,720 | ||||
| CATG J EXCEPTION VALUES: | 10,501,476 | 11,351,293 | ||||
| Total Test Values | 176,171,983 | 184,771,445 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 9,238,572 |
Confidence Interval Values(5)
| Local Test Value: | 176,171,983 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 175,532,873 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 194,010,017 | (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