2006 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 | 487,043,976 | 0.9690 | 502,625,362 | 7 | 10,777 | .001209707 |
| A | 487,208,025 | 0.9692 | 502,690,905 | 8 | 5,819 | .001482088 |
| A | 486,511,797 | 0.9620 | 505,729,519 | 9 | 3,965 | .002896563 |
| A | 486,839,593 | 0.9825 | 495,511,036 | 8 | 2,055 | .001394037 |
| F1 | 132,952,955 | 0.6803 | 195,432,831 | 10 | 1,058 | .771624437 |
| F1 | 132,738,420 | 0.9346 | 142,026,985 | 8 | 291 | .008323909 |
| F1 | 134,593,962 | 1.0126 | 132,919,180 | 5 | 78 | .021244929 |
| F1 | 130,917,953 | 1.0075 | 129,943,378 | 6 | 20 | .013754330 |
| L1 | 73,472,326 | 1.0112 | 72,658,550 | 8 | 202 | .002421987 |
| L1 | 74,622,157 | 1.0278 | 72,603,772 | 7 | 62 | .002364124 |
| L1 | 70,423,196 | 1.0384 | 67,818,948 | 6 | 15 | .000787484 |
| Random Totals: | 2,697,324,360 | 2,819,960,466 | 82 | 24,342 | ||
| Catg D1 Exception Values: | 6,375,790 | 6,288,746 | ||||
| Total Test Values (4): | 2,703,700,150 | 2,826,249,212 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 141,312,461 |
Confidence Interval Values (5)
| State Lower Limit: | 2,684,936,751 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,703,700,150 | (Within Confidence Interval) |
| State Upper Limit: | 2,967,561,673 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,793,904,510 | (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