2007 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 | 2,659,854 | 0.9821 | 2,708,333 | 12 | 65 | .033222345 |
| A | 2,711,927 | 0.9342 | 2,902,940 | 15 | 39 | .004135469 |
| A | 2,667,896 | 0.8877 | 3,005,403 | 11 | 27 | .009893149 |
| A | 2,596,385 | 0.8699 | 2,984,694 | 8 | 15 | .002106932 |
| D3 | 22,304,470 | 0.9620 | 23,185,520 | 20 | 1,038 | .007117625 |
| Random Totals: | 32,940,532 | 34,786,890 | 66 | 1,184 | ||
| Catg D1 Exception Values: | 6,921,634 | 7,023,706 | ||||
| Total Test Values (4): | 39,862,166 | 41,810,596 |
Margin of Error
| Margin of Error Percent: | 5.0000005 |
|---|---|
| Margin of Error Value: | 2,090,530 |
Confidence Interval Values (5)
| State Lower Limit: | 39,720,066 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 39,862,166 | (Within Confidence Interval) |
| State Upper Limit: | 43,901,126 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 50,717,776 | (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