2007 Confidence Interval Detail
174/Nacogdoches
174-911/Douglass ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 9,413,044 | 0.9064 | 10,385,088 | 9 | 136 | .088764427 |
| A | 9,451,656 | 0.8684 | 10,883,989 | 8 | 65 | .014437364 |
| A | 9,388,466 | 0.9116 | 10,298,888 | 8 | 42 | .018353323 |
| A | 9,283,442 | 0.9718 | 9,552,832 | 9 | 27 | .014199319 |
| D3 | 28,237,380 | 1.0107 | 27,938,439 | 16 | 1,244 | .042317516 |
| G1 | 22,362,510 | 1.0231 | 21,857,599 | 6 | 60 | .006696405 |
| G1 | 22,093,350 | 0.9711 | 22,750,850 | 6 | 28 | .029695527 |
| G1 | 21,814,970 | 1.0026 | 21,758,398 | 5 | 16 | .008090739 |
| G1 | 21,075,409 | 0.9952 | 21,177,059 | 4 | 8 | .000703546 |
| Random Totals: | 153,120,227 | 156,603,142 | 71 | 1,626 | ||
| Catg J Exception Values: | 3,148,572 | 3,066,795 | ||||
| Catg D1 Exception Values: | 9,995,380 | 10,106,449 | ||||
| Total Test Values (4): | 166,264,179 | 169,776,386 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 8,488,819 |
Confidence Interval Values (5)
| State Lower Limit: | 161,287,567 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 166,264,179 | (Within Confidence Interval) |
| State Upper Limit: | 178,265,205 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 179,784,831 | (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