2008 Confidence Interval Detail
060/Delta
060-902/Cooper ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 11,250,010 | 1.0416 | 10,800,701 | 13 | 467 | .085175042 |
| A | 15,165,850 | 1.0381 | 14,609,238 | 17 | 343 | .026727911 |
| A | 14,795,770 | 0.9697 | 15,258,090 | 12 | 213 | .085197224 |
| A | 15,335,240 | 0.9885 | 15,513,647 | 14 | 127 | .006396245 |
| D3 | 50,308,621 | 0.8925 | 56,368,203 | 24 | 3,515 | .061543889 |
| Random Totals: | 106,855,491 | 112,549,879 | 80 | 4,665 | ||
| Catg J Exception Values: | 8,954,452 | 8,999,792 | ||||
| Catg D1 Exception Values: | 14,029,842 | 13,605,920 | ||||
| Total Test Values (4): | 129,839,785 | 135,155,591 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 6,757,780 |
Confidence Interval Values (5)
| State Lower Limit: | 128,397,811 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 129,839,785 | (Within Confidence Interval) |
| State Upper Limit: | 141,913,371 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 143,621,853 | (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