2009 Confidence Interval Detail
246/Williamson
246-913/Leander ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,372,463,605 | 0.9808 | 1,399,330,756 | 57 | 9,792 | .003264469 |
| A | 1,355,621,140 | 0.9695 | 1,398,268,324 | 57 | 7,715 | .004470268 |
| A | 1,298,765,388 | 0.9821 | 1,322,437,010 | 57 | 5,853 | .004488244 |
| A | 1,180,388,131 | 0.9805 | 1,203,863,469 | 57 | 3,414 | .007153746 |
| B | 99,156,959 | 0.9136 | 108,534,325 | 7 | 280 | .005030901 |
| B | 100,469,755 | 1.0386 | 96,735,755 | 4 | 4 | .004277869 |
| C | 37,848,782 | 0.8330 | 45,436,713 | 7 | 483 | .041839188 |
| C | 67,696,429 | 0.7692 | 88,008,878 | 9 | 238 | .184419670 |
| C | 66,249,023 | 1.0370 | 63,885,268 | 7 | 85 | .022865636 |
| C | 54,227,071 | 1.0033 | 54,048,710 | 8 | 25 | .003941401 |
| F1 | 227,093,988 | 1.0568 | 214,888,331 | 7 | 317 | .047081887 |
| F1 | 244,374,148 | 0.8959 | 272,769,447 | 7 | 124 | .021494467 |
| F1 | 253,384,311 | 1.0324 | 245,432,304 | 6 | 44 | .004754315 |
| F1 | 217,533,219 | 0.9443 | 230,364,523 | 3 | 7 | .002466837 |
| L1 | 77,413,537 | 1.0215 | 75,784,177 | 8 | 496 | .025887470 |
| L1 | 88,228,791 | 0.9514 | 92,735,748 | 6 | 70 | .025776940 |
| L1 | 68,294,480 | 0.9194 | 74,281,575 | 4 | 10 | .002672839 |
| L1 | 90,392,722 | 0.9385 | 96,316,166 | 2 | 4 | .004418185 |
| Random Totals: | 6,899,601,479 | 7,083,121,479 | 313 | 28,961 | ||
| Catg D1 Exception Values: | 1,316,327 | 1,029,660 | ||||
| Catg B Exception Values: | 94,517,256 | 97,399,172 | ||||
| Total Test Values (4): | 6,995,435,062 | 7,181,550,311 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 359,077,516 |
Confidence Interval Values (5)
| State Lower Limit: | 6,822,472,795 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,995,435,062 | (Within Confidence Interval) |
| State Upper Limit: | 7,540,627,827 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,319,339,357 | (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