2009 Confidence Interval Detail
250/Wood
250-904/Quitman ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 47,485,638 | 1.0346 | 45,897,582 | 30 | 1,010 | .092910863 |
| A | 48,074,970 | 1.0552 | 45,560,055 | 18 | 571 | .046959068 |
| A | 46,830,060 | 1.0339 | 45,294,574 | 18 | 391 | .026454240 |
| A | 56,321,320 | 0.9627 | 58,503,501 | 16 | 264 | .026903284 |
| D3 | 104,322,252 | 0.9933 | 105,025,926 | 37 | 4,106 | .076309038 |
| F1 | 7,386,980 | 0.9507 | 7,770,043 | 11 | 96 | .031566965 |
| F1 | 8,854,032 | 0.8809 | 10,051,120 | 7 | 46 | .101713903 |
| F1 | 8,720,515 | 0.6691 | 13,033,201 | 6 | 20 | .075309879 |
| F1 | 10,222,538 | 0.8680 | 11,777,118 | 5 | 8 | .058856807 |
| G1 | 20,409,290 | 1.0877 | 18,763,712 | 6 | 64 | .014342762 |
| G1 | 21,072,139 | 1.0816 | 19,482,377 | 6 | 19 | .005701639 |
| G1 | 21,612,430 | 1.0246 | 21,093,529 | 3 | 6 | .017484030 |
| Random Totals: | 401,312,164 | 402,252,738 | 163 | 6,601 | ||
| Catg D1 Exception Values: | 10,787,413 | 7,576,510 | ||||
| Catg G1 Exception Values: | 18,381,382 | 18,205,546 | ||||
| Total Test Values (4): | 430,480,959 | 428,034,794 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 21,401,740 |
Confidence Interval Values (5)
| State Lower Limit: | 406,633,054 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 430,480,959 | (Within Confidence Interval) |
| State Upper Limit: | 449,436,534 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 414,003,012 | (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