2008 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 | 541,657,283 | 0.9575 | 565,699,512 | 28 | 10,968 | .011851030 |
| A | 607,362,674 | 0.9310 | 652,376,664 | 28 | 7,063 | .008890901 |
| A | 568,256,756 | 0.8938 | 635,776,187 | 28 | 4,355 | .010438178 |
| A | 591,252,306 | 0.9756 | 606,039,674 | 28 | 2,361 | .002829638 |
| F1 | 145,766,361 | 0.9976 | 146,117,042 | 13 | 1,085 | .038356935 |
| F1 | 153,696,756 | 0.9206 | 166,952,809 | 14 | 259 | .009550051 |
| F1 | 146,702,920 | 0.8493 | 172,733,922 | 11 | 65 | .032832327 |
| F1 | 149,618,289 | 0.9633 | 155,318,477 | 12 | 20 | .009918731 |
| L1 | 77,872,357 | 0.9942 | 78,326,652 | 10 | 940 | .021791922 |
| L1 | 79,880,510 | 0.9865 | 80,973,654 | 11 | 192 | .012882744 |
| L1 | 92,767,969 | 1.0374 | 89,423,529 | 12 | 71 | .025936016 |
| L1 | 72,930,978 | 1.0349 | 70,471,522 | 9 | 13 | .006187206 |
| Random Totals: | 3,227,765,159 | 3,420,209,644 | 204 | 27,392 | ||
| Catg D1 Exception Values: | 6,736,610 | 6,409,429 | ||||
| Total Test Values (4): | 3,234,501,769 | 3,426,619,073 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 171,330,954 |
Confidence Interval Values (5)
| Local Test Value: | 3,234,501,769 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 3,255,288,119 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 3,597,950,027 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 3,166,255,924 | (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