2007 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 | 49,690,964 | 0.8860 | 56,084,609 | 11 | 872 | .045681360 |
| A | 49,701,947 | 0.8009 | 62,057,619 | 17 | 555 | .130307055 |
| A | 49,732,199 | 0.8929 | 55,697,389 | 11 | 369 | .020500027 |
| A | 49,498,701 | 0.9585 | 51,641,837 | 12 | 233 | .004338381 |
| D3 | 32,274,569 | 0.9742 | 33,129,305 | 10 | 6,637 | .000222225 |
| F1 | 10,727,375 | 0.9598 | 11,176,677 | 8 | 120 | .000183979 |
| F1 | 10,873,459 | 0.9304 | 11,686,865 | 7 | 45 | .008177358 |
| F1 | 10,812,229 | 0.9685 | 11,163,892 | 7 | 13 | .001764816 |
| F1 | 10,007,421 | 0.8658 | 11,558,583 | 2 | 3 | .039705415 |
| L1 | 4,978,996 | 1.0126 | 4,917,041 | 8 | 164 | .009705577 |
| L1 | 4,946,722 | 1.0324 | 4,791,478 | 6 | 34 | .001192292 |
| L1 | 5,051,049 | 1.1063 | 4,565,714 | 6 | 13 | .014100976 |
| L1 | 4,841,624 | 1.2023 | 4,026,968 | 3 | 4 | .011150134 |
| Random Totals: | 293,137,255 | 322,497,977 | 108 | 9,062 | ||
| Catg J Exception Values: | 17,454,071 | 17,433,763 | ||||
| Catg D1 Exception Values: | 15,559,740 | 19,374,847 | ||||
| Total Test Values (4): | 326,151,066 | 359,306,587 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 17,965,329 |
Confidence Interval Values (5)
| Local Test Value: | 326,151,066 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 341,341,258 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 377,271,916 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 343,987,115 | (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