2009 Confidence Interval Detail
224/Throckmorton
224-902/Woodson ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 827,450 | 0.9723 | 851,023 | 8 | 54 | .029141065 |
| A | 745,910 | 0.9656 | 772,483 | 7 | 29 | .017208588 |
| A | 793,110 | 0.8736 | 907,864 | 5 | 21 | .109565458 |
| A | 753,070 | 1.0011 | 752,243 | 6 | 13 | .011180232 |
| D3 | 4,254,530 | 0.7816 | 5,443,360 | 20 | 981 | .107026168 |
| G1 | 3,239,331 | 1.0564 | 3,066,387 | 15 | 47 | .009077872 |
| G1 | 3,007,300 | 1.0114 | 2,973,403 | 9 | 14 | .005050532 |
| G1 | 3,432,090 | 1.1362 | 3,020,674 | 7 | 9 | .032964225 |
| G1 | 2,741,110 | 1.0401 | 2,635,429 | 4 | 5 | .001845249 |
| Random Totals: | 19,793,901 | 20,422,866 | 81 | 1,173 | ||
| Catg J Exception Values: | 631,611 | 924,375 | ||||
| Catg D1 Exception Values: | 3,881,780 | 3,257,067 | ||||
| Total Test Values (4): | 24,307,292 | 24,604,308 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,230,215 |
Confidence Interval Values (5)
| State Lower Limit: | 23,374,093 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 24,307,292 | (Within Confidence Interval) |
| State Upper Limit: | 25,834,523 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 24,907,291 | (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