2010 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 | 11,897,530 | 0.9462 | 12,574,012 | 9 | 148 | .005300175 |
| A | 12,158,710 | 0.9863 | 12,327,598 | 9 | 73 | .000234760 |
| A | 11,548,260 | 0.9785 | 11,802,003 | 8 | 50 | .000526612 |
| A | 12,191,330 | 0.9773 | 12,474,501 | 8 | 36 | .000214200 |
| D3 | 32,637,990 | 1.0454 | 31,220,576 | 15 | 1,288 | .013909640 |
| G1 | 13,073,412 | 0.9380 | 13,937,539 | 10 | 89 | .010033828 |
| G1 | 13,133,460 | 0.9639 | 13,625,335 | 10 | 37 | .023473915 |
| G1 | 13,667,260 | 1.0119 | 13,506,532 | 7 | 22 | .003380760 |
| G1 | 12,396,900 | 1.0439 | 11,875,563 | 5 | 12 | .000698578 |
| Random Totals: | 132,704,852 | 133,343,659 | 81 | 1,755 | ||
| Catg J Exception Values: | 2,642,567 | 2,898,907 | ||||
| Catg D1 Exception Values: | 10,127,720 | 5,349,667 | ||||
| Total Test Values (4): | 145,475,139 | 141,592,233 |
Margin of Error
| Margin of Error Percent: | 5.0000002 |
|---|---|
| Margin of Error Value: | 7,079,612 |
Confidence Interval Values (5)
| State Lower Limit: | 134,512,621 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 145,475,139 | (Within Confidence Interval) |
| State Upper Limit: | 148,671,845 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 179,281,069 | (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