2006 Confidence Interval Detail
226/Tom Green
226-907/Grape Creek ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 19,820,544 | 0.9297 | 21,319,290 | 7 | 685 | .001245133 |
| A | 19,790,283 | 0.9330 | 21,211,450 | 8 | 404 | .000328769 |
| A | 19,875,386 | 0.9459 | 21,012,143 | 7 | 296 | .000873318 |
| A | 19,724,098 | 0.9463 | 20,843,388 | 8 | 187 | .000403248 |
| D3 | 9,002,439 | 1.0584 | 8,505,706 | 10 | 1,074 | .004132133 |
| Random Totals: | 88,212,750 | 92,891,977 | 40 | 2,646 | ||
| Catg D1 Exception Values: | 5,515,620 | 5,255,510 | ||||
| Total Test Values (4): | 93,728,370 | 98,147,487 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,907,374 |
Confidence Interval Values (5)
| State Lower Limit: | 93,240,113 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 93,728,370 | (Within Confidence Interval) |
| State Upper Limit: | 103,054,861 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 103,986,062 | (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