2009 Confidence Interval Detail
220/Tarrant
220-917/Castleberry ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 102,828,657 | 0.9865 | 104,235,841 | 14 | 1,873 | .024529018 |
| A | 102,655,341 | 1.0181 | 100,830,312 | 26 | 1,416 | .019701564 |
| A | 100,698,940 | 1.0327 | 97,510,352 | 25 | 1,071 | .020970113 |
| A | 101,925,887 | 1.0786 | 94,498,319 | 18 | 763 | .023900471 |
| F1 | 17,929,596 | 0.9813 | 18,271,269 | 7 | 130 | .038531045 |
| F1 | 17,487,838 | 0.8791 | 19,892,888 | 7 | 57 | .053226790 |
| F1 | 16,612,748 | 0.8431 | 19,704,362 | 6 | 25 | .006872289 |
| F1 | 16,961,147 | 0.9409 | 18,026,514 | 4 | 11 | .011092658 |
| Random Totals: | 477,100,154 | 472,969,857 | 107 | 5,346 | ||
| Catg D1 Exception Values: | 8,976 | 8,898 | ||||
| Total Test Values (4): | 477,109,130 | 472,978,755 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 23,648,938 |
Confidence Interval Values (5)
| State Lower Limit: | 449,329,817 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 477,109,130 | (Within Confidence Interval) |
| State Upper Limit: | 496,627,693 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 488,454,077 | (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