2006 Confidence Interval Detail
022/Brewster
022-901/Alpine ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 46,755,404 | 0.8686 | 53,828,464 | 16 | 856 | .101625368 |
| A | 46,818,167 | 0.9435 | 49,621,799 | 15 | 552 | .055111194 |
| A | 46,787,813 | 1.0026 | 46,666,480 | 15 | 365 | .011824405 |
| A | 46,605,333 | 0.9932 | 46,924,419 | 15 | 231 | .002418412 |
| D3 | 26,129,867 | 0.9796 | 26,674,017 | 20 | 6,596 | .001449452 |
| F1 | 9,893,377 | 0.9669 | 10,232,058 | 7 | 118 | .000491805 |
| F1 | 9,721,541 | 0.9533 | 10,197,777 | 7 | 43 | .010661206 |
| F1 | 10,027,652 | 1.0369 | 9,670,799 | 5 | 13 | .012816367 |
| F1 | 9,433,150 | 0.9902 | 9,526,510 | 2 | 3 | .000004630 |
| L1 | 4,574,422 | 1.0410 | 4,394,257 | 8 | 156 | .004955158 |
| L1 | 4,451,747 | 1.1488 | 3,875,128 | 6 | 34 | .020697299 |
| L1 | 5,048,331 | 1.0397 | 4,855,565 | 5 | 13 | .002142660 |
| L1 | 3,957,749 | 1.1913 | 3,322,210 | 2 | 3 | .010737217 |
| Random Totals: | 270,204,553 | 279,789,483 | 123 | 8,983 | ||
| Catg J Exception Values: | 17,894,473 | 17,735,758 | ||||
| Catg D1 Exception Values: | 15,490,049 | 16,835,746 | ||||
| Total Test Values (4): | 303,589,075 | 314,360,987 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 15,718,049 |
Confidence Interval Values (5)
| State Lower Limit: | 298,642,938 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 303,589,075 | (Within Confidence Interval) |
| State Upper Limit: | 330,079,036 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 289,529,603 | (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