2008 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 | 40,711,408 | 0.9949 | 40,920,101 | 15 | 759 | .012260625 |
| A | 56,745,171 | 0.9528 | 59,556,225 | 16 | 643 | .012104845 |
| A | 55,450,004 | 0.9698 | 57,176,742 | 15 | 416 | .000429967 |
| A | 71,644,843 | 0.9471 | 75,646,545 | 16 | 331 | .002705608 |
| D3 | 34,540,598 | 0.9700 | 35,608,864 | 10 | 6,659 | .000084754 |
| F1 | 10,582,057 | 0.8194 | 12,914,397 | 9 | 121 | .161767789 |
| F1 | 12,971,429 | 0.9634 | 13,464,219 | 6 | 51 | .000493681 |
| F1 | 11,415,699 | 1.0315 | 11,067,086 | 5 | 14 | .022322013 |
| F1 | 13,260,075 | 0.9299 | 14,259,678 | 2 | 4 | .001149961 |
| Random Totals: | 307,321,284 | 320,613,857 | 94 | 8,998 | ||
| Catg J Exception Values: | 18,182,457 | 17,638,093 | ||||
| Catg D1 Exception Values: | 16,975,755 | 20,578,612 | ||||
| Total Test Values (4): | 342,479,496 | 358,830,562 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 17,941,528 |
Confidence Interval Values (5)
| State Lower Limit: | 340,889,034 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 342,479,496 | (Within Confidence Interval) |
| State Upper Limit: | 376,772,090 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 341,984,931 | (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