2009 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 | 524,320,292 | 0.9059 | 578,783,853 | 50 | 9,925 | .015910014 |
| A | 500,454,159 | 0.9588 | 521,958,864 | 50 | 5,566 | .005895275 |
| A | 758,322,587 | 0.9905 | 765,595,747 | 50 | 5,656 | .004647535 |
| A | 763,479,908 | 0.9948 | 767,470,756 | 48 | 3,003 | .001808897 |
| F1 | 151,649,127 | 0.9550 | 158,794,897 | 10 | 1,090 | .007197256 |
| F1 | 157,427,556 | 1.0090 | 156,023,346 | 8 | 259 | .018646212 |
| F1 | 135,148,650 | 0.9391 | 143,912,949 | 6 | 62 | .059008442 |
| F1 | 161,175,250 | 1.0823 | 148,919,200 | 6 | 23 | .015353565 |
| L1 | 85,943,044 | 0.9991 | 86,020,462 | 7 | 995 | .013753065 |
| L1 | 83,832,803 | 0.9843 | 85,169,972 | 7 | 188 | .046054199 |
| L1 | 75,568,030 | 1.0394 | 72,703,512 | 6 | 60 | .000532238 |
| L1 | 96,008,858 | 1.0289 | 93,312,137 | 5 | 19 | .002912392 |
| Random Totals: | 3,493,330,264 | 3,578,665,695 | 253 | 26,846 | ||
| Catg D1 Exception Values: | 6,981,960 | 7,466,867 | ||||
| Total Test Values (4): | 3,500,312,224 | 3,586,132,562 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 179,306,628 |
Confidence Interval Values (5)
| State Lower Limit: | 3,406,825,934 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 3,500,312,224 | (Within Confidence Interval) |
| State Upper Limit: | 3,765,439,190 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 3,311,466,103 | (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