2009 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 | 2,470,910 | 1.0481 | 2,357,514 | 7 | 61 | .011015340 |
| A | 2,804,250 | 0.9941 | 2,820,893 | 6 | 41 | .002950432 |
| A | 2,765,060 | 0.9326 | 2,964,894 | 7 | 29 | .023551197 |
| A | 4,493,820 | 1.0018 | 4,485,746 | 5 | 29 | .011190526 |
| D3 | 25,697,090 | 1.1716 | 21,933,330 | 20 | 1,045 | .042012749 |
| G1 | 34,401,269 | 1.0010 | 34,366,902 | 17 | 50 | .020994973 |
| Random Totals: | 72,632,399 | 68,929,279 | 62 | 1,255 | ||
| Catg J Exception Values: | 966,260 | 928,457 | ||||
| Catg D1 Exception Values: | 6,956,610 | 4,544,907 | ||||
| Total Test Values (4): | 80,555,269 | 74,402,643 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 3,720,132 |
Confidence Interval Values (5)
| State Lower Limit: | 70,682,511 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| State Upper Limit: | 78,122,775 | (State Test Value plus Margin of Error Percent) |
| Local Test Value: | 80,555,269 | (Outside Confidence Interval) |
| Value Assigned (6): | 101,837,467 | (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