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Williamson County
2021 Confidence Interval Detail
Williamson County
014-902/Bartlett ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,419,074 | 0.9369 | 7,918,747 | 15 | 128 | 0.086238845 |
| A | 7,083,265 | 1.0796 | 6,561,009 | 15 | 71 | 0.062113317 |
| A | 14,670,153 | 1.0709 | 13,698,901 | 15 | 106 | 0.024664587 |
| A | 21,927,706 | 0.9297 | 23,585,787 | 15 | 96 | 0.011945505 |
| E | 13,948,942 | 1.0108 | 13,799,903 | 17 | 172 | 0.028661168 |
| F1 | 6,585,223 | 0.9961 | 6,611,006 | 9 | 43 | 0.003710472 |
| Random Totals: | 71,634,363 | 72,175,353 | 86 | 616 | ||
| CATG D1 EXCEPTION VALUES: | 4,412,112 | 4,608,172 | ||||
| CATG J EXCEPTION VALUES: | 2,581,578 | 2,721,600 | ||||
| Total Test Values | 78,628,053 | 79,505,125 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 3,975,256 |
Confidence Interval Values(5)
| Local Test Value: | 78,628,053 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 75,529,869 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 83,480,381 | (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