2007 Confidence Interval Detail
246/Williamson
246-907/Jarrell ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 115,170,968 | 1.0010 | 115,055,912 | 26 | 794 | .003860451 |
| A | 115,087,860 | 0.9908 | 116,156,500 | 24 | 586 | .004030185 |
| A | 115,116,782 | 0.9984 | 115,301,264 | 25 | 458 | .005474366 |
| A | 114,966,043 | 0.9822 | 117,049,525 | 24 | 325 | .005962913 |
| D3 | 68,637,094 | 0.9908 | 69,274,419 | 17 | 1,614 | .002487366 |
| Random Totals: | 528,978,747 | 532,837,620 | 116 | 3,777 | ||
| Catg D1 Exception Values: | 4,511,332 | 4,222,220 | ||||
| Total Test Values (4): | 533,490,079 | 537,059,840 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 26,852,992 |
Confidence Interval Values (5)
| State Lower Limit: | 510,206,848 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 533,490,079 | (Within Confidence Interval) |
| State Upper Limit: | 563,912,832 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 527,274,139 | (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