2008 Confidence Interval Detail
174/Nacogdoches
174-909/Martinsville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,703,570 | 0.9351 | 2,891,209 | 6 | 65 | .003039581 |
| A | 2,520,440 | 0.8384 | 3,006,250 | 7 | 36 | .009305746 |
| A | 2,570,760 | 0.8474 | 3,033,703 | 6 | 26 | .010508368 |
| A | 2,569,360 | 0.8986 | 2,859,292 | 5 | 15 | .004087760 |
| D3 | 23,664,640 | 0.9077 | 26,070,993 | 19 | 1,042 | .036788245 |
| G1 | 24,056,171 | 1.0174 | 23,644,752 | 18 | 43 | .009825948 |
| Random Totals: | 58,084,941 | 61,506,199 | 61 | 1,227 | ||
| Catg J Exception Values: | 983,067 | 978,729 | ||||
| Catg D1 Exception Values: | 6,954,150 | 7,392,587 | ||||
| Total Test Values (4): | 66,022,158 | 69,877,515 |
Margin of Error
| Margin of Error Percent: | 5.0000004 |
|---|---|
| Margin of Error Value: | 3,493,876 |
Confidence Interval Values (5)
| Local Test Value: | 66,022,158 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 66,383,639 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 73,371,391 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 77,433,439 | (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