2011 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 | 62,151,942 | 0.9628 | 64,553,326 | 13 | 1,002 | .021521129 |
| A | 58,564,485 | 0.8456 | 69,257,906 | 11 | 542 | .016053373 |
| A | 62,467,632 | 0.9905 | 63,066,766 | 14 | 395 | .007590373 |
| A | 72,105,157 | 1.0877 | 66,291,401 | 12 | 298 | .037570595 |
| D3 | 37,806,886 | 1.0445 | 36,196,157 | 34 | 6,685 | .057086012 |
| F1 | 13,760,589 | 1.0473 | 13,139,109 | 9 | 125 | .027289356 |
| F1 | 13,446,872 | 0.9204 | 14,609,813 | 9 | 45 | .121521364 |
| F1 | 13,904,498 | 0.7693 | 18,074,221 | 6 | 14 | .035951804 |
| F1 | 13,173,936 | 0.7960 | 16,550,171 | 3 | 4 | .031444326 |
| L1 | 5,324,511 | 1.0129 | 5,256,700 | 11 | 123 | .013917203 |
| L1 | 4,914,637 | 1.0458 | 4,699,404 | 8 | 20 | .014134053 |
| L1 | 5,983,696 | 1.0810 | 5,535,334 | 4 | 9 | .004555499 |
| L1 | 6,173,807 | 1.2131 | 5,089,281 | 2 | 4 | .029300715 |
| Random Totals: | 369,778,648 | 382,319,589 | 136 | 9,266 | ||
| Catg J Exception Values: | 21,384,857 | 21,501,664 | ||||
| Catg D1 Exception Values: | 18,186,919 | 23,442,887 | ||||
| Total Test Values (4): | 409,350,424 | 427,264,140 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 21,363,207 |
Confidence Interval Values (5)
| State Lower Limit: | 405,900,933 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 409,350,424 | (Within Confidence Interval) |
| State Upper Limit: | 448,627,347 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 393,965,116 | (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