2008 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 | 9,483,570 | 0.8460 | 11,209,894 | 8 | 137 | .014520151 |
| A | 10,204,560 | 0.8712 | 11,713,223 | 7 | 70 | .029649167 |
| A | 10,027,710 | 0.8620 | 11,633,074 | 6 | 48 | .012640645 |
| A | 10,217,490 | 0.8311 | 12,293,936 | 7 | 32 | .028642193 |
| D3 | 29,160,190 | 0.9589 | 30,410,043 | 20 | 1,251 | .014069348 |
| G1 | 23,374,039 | 0.9676 | 24,156,717 | 7 | 72 | .003517222 |
| G1 | 23,515,180 | 1.0194 | 23,067,667 | 6 | 36 | .002485336 |
| G1 | 22,431,510 | 0.9856 | 22,759,243 | 5 | 20 | .001144698 |
| G1 | 23,052,020 | 0.9818 | 23,479,344 | 4 | 11 | .004606570 |
| Random Totals: | 161,466,269 | 170,723,141 | 70 | 1,677 | ||
| Catg J Exception Values: | 3,002,076 | 2,990,701 | ||||
| Catg D1 Exception Values: | 10,018,700 | 9,133,611 | ||||
| Total Test Values (4): | 174,487,045 | 182,847,453 |
Margin of Error
| Margin of Error Percent: | 5.0000002 |
|---|---|
| Margin of Error Value: | 9,142,373 |
Confidence Interval Values (5)
| State Lower Limit: | 173,705,080 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 174,487,045 | (Within Confidence Interval) |
| State Upper Limit: | 191,989,826 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 225,128,837 | (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