2007 Confidence Interval Detail
226/Tom Green
226-903/San Angelo ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 520,073,866 | 0.8402 | 618,988,177 | 52 | 10,545 | .099622208 |
| A | 520,330,209 | 0.8609 | 604,402,612 | 54 | 5,881 | .024440519 |
| A | 520,243,856 | 0.9028 | 576,255,933 | 51 | 3,991 | .012132667 |
| A | 519,123,611 | 0.9195 | 564,571,627 | 57 | 2,147 | .022466765 |
| F1 | 146,128,717 | 0.8939 | 163,473,226 | 16 | 1,070 | .026681661 |
| F1 | 146,094,075 | 0.9484 | 154,042,677 | 16 | 272 | .005588048 |
| F1 | 147,460,804 | 0.9720 | 151,708,646 | 14 | 70 | .025056576 |
| F1 | 143,763,880 | 0.9629 | 149,303,022 | 10 | 20 | .002102396 |
| L1 | 75,890,098 | 0.9674 | 78,447,486 | 7 | 985 | .000447748 |
| L1 | 75,892,496 | 0.9830 | 77,204,981 | 7 | 189 | .000099797 |
| L1 | 76,160,198 | 0.9881 | 77,077,419 | 8 | 60 | .000551118 |
| L1 | 74,962,210 | 1.0125 | 74,036,751 | 7 | 16 | .003637405 |
| Random Totals: | 2,966,124,020 | 3,289,512,557 | 299 | 25,246 | ||
| Catg D1 Exception Values: | 6,373,470 | 6,262,673 | ||||
| Total Test Values (4): | 2,972,497,490 | 3,295,775,230 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 164,788,762 |
Confidence Interval Values (5)
| Local Test Value: | 2,972,497,490 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 3,130,986,468 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 3,460,563,992 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,955,169,446 | (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