2009 Confidence Interval Detail
246/Williamson
246-911/Taylor ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 109,955,850 | 0.9347 | 117,637,584 | 13 | 1,539 | .028599114 |
| A | 129,395,417 | 0.9613 | 134,604,616 | 23 | 1,239 | .009610435 |
| A | 109,259,775 | 0.9323 | 117,193,795 | 24 | 824 | .021430678 |
| A | 96,581,669 | 0.9670 | 99,877,631 | 11 | 481 | .010508408 |
| D3 | 49,403,519 | 0.9314 | 53,042,215 | 11 | 1,525 | .033179805 |
| F1 | 39,250,634 | 1.0312 | 38,063,066 | 7 | 201 | .003402342 |
| F1 | 41,219,287 | 1.0741 | 38,375,651 | 6 | 55 | .004585685 |
| F1 | 51,399,439 | 0.9193 | 55,911,497 | 4 | 11 | .000925121 |
| L1 | 13,553,412 | 0.9000 | 15,059,347 | 8 | 210 | .115301581 |
| L1 | 11,725,503 | 1.0035 | 11,684,607 | 6 | 33 | .003249262 |
| L1 | 13,541,866 | 1.0006 | 13,533,746 | 4 | 8 | .001670312 |
| Random Totals: | 665,286,371 | 694,983,755 | 117 | 6,126 | ||
| Catg D1 Exception Values: | 12,816,566 | 9,817,837 | ||||
| Catg F1 Exception Values: | 17,511,559 | 17,911,578 | ||||
| Catg L1 Exception Values: | 5,724,771 | 5,855,624 | ||||
| Total Test Values (4): | 701,339,267 | 728,568,794 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 36,428,440 |
Confidence Interval Values (5)
| State Lower Limit: | 692,140,354 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 701,339,267 | (Within Confidence Interval) |
| State Upper Limit: | 764,997,234 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 773,721,525 | (See ISD Summary Worksheet) |
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, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories