2008 Confidence Interval Detail
125/Jim Wells
125-901/Alice ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 75,962,040 | 0.9868 | 76,978,152 | 21 | 2,232 | .033741742 |
| A | 78,543,528 | 0.9241 | 84,994,620 | 19 | 1,296 | .048069198 |
| A | 69,405,949 | 0.9826 | 70,634,998 | 22 | 719 | .009370268 |
| A | 124,512,504 | 0.9963 | 124,974,911 | 37 | 761 | .001706494 |
| D3 | 88,637,521 | 0.8983 | 98,672,516 | 27 | 5,256 | .066173780 |
| F1 | 23,524,987 | 0.9753 | 24,120,770 | 7 | 323 | .002793525 |
| F1 | 23,908,440 | 0.9345 | 25,584,205 | 7 | 103 | .001070430 |
| F1 | 25,173,114 | 0.9512 | 26,464,586 | 6 | 42 | .004533754 |
| F1 | 30,176,031 | 0.9618 | 31,374,538 | 4 | 12 | .003797814 |
| L1 | 18,247,119 | 0.9968 | 18,305,697 | 7 | 387 | .018886254 |
| L1 | 17,832,466 | 1.0180 | 17,517,157 | 7 | 89 | .007493838 |
| L1 | 20,131,175 | 0.9960 | 20,212,023 | 6 | 35 | .007002313 |
| L1 | 22,746,095 | 1.0230 | 22,234,697 | 3 | 8 | .003851223 |
| Random Totals: | 618,800,969 | 642,068,870 | 173 | 11,263 | ||
| Catg D1 Exception Values: | 20,151,716 | 19,328,573 | ||||
| Total Test Values (4): | 638,952,685 | 661,397,443 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 33,069,872 |
Confidence Interval Values (5)
| State Lower Limit: | 628,327,571 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 638,952,685 | (Within Confidence Interval) |
| State Upper Limit: | 694,467,315 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,011,148,003 | (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