2006 Confidence Interval Detail
250/Wood
250-907/Winnsboro ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 36,886,250 | 1.0188 | 36,205,585 | 19 | 833 | .029318355 |
| A | 36,830,972 | 0.9874 | 37,300,964 | 18 | 482 | .053020108 |
| A | 36,901,146 | 1.0761 | 34,291,558 | 15 | 344 | .030343127 |
| A | 36,799,095 | 0.9572 | 38,444,520 | 12 | 201 | .006103835 |
| D3 | 112,528,430 | 0.9708 | 115,913,092 | 47 | 4,880 | .065735503 |
| F1 | 8,232,780 | 0.8021 | 10,264,032 | 8 | 146 | .092479374 |
| F1 | 8,173,976 | 0.7746 | 10,552,512 | 8 | 52 | .125175358 |
| F1 | 8,165,809 | 0.7907 | 10,327,316 | 6 | 23 | .039746375 |
| F1 | 8,163,053 | 0.7869 | 10,373,685 | 6 | 9 | .046214583 |
| G1 | 6,182,159 | 1.0944 | 5,648,903 | 4 | 11 | .024100419 |
| G1 | 5,020,980 | 1.0269 | 4,889,454 | 3 | 4 | .006341251 |
| G1 | 6,763,620 | 1.0797 | 6,264,351 | 2 | 3 | .007419995 |
| Random Totals: | 310,648,270 | 320,475,972 | 148 | 6,988 | ||
| Catg D1 Exception Values: | 15,494,806 | 9,192,304 | ||||
| Catg G1 Exception Values: | 20,582,170 | 22,120,439 | ||||
| Total Test Values (4): | 346,725,246 | 351,788,715 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 17,589,436 |
Confidence Interval Values (5)
| State Lower Limit: | 334,199,279 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 346,725,246 | (Within Confidence Interval) |
| State Upper Limit: | 369,378,151 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 358,431,137 | (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