2011 Confidence Interval Detail
184/Parker
184-909/Brock ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 40,446,050 | 0.9964 | 40,592,182 | 12 | 310 | .004102187 |
| A | 45,741,510 | 0.9963 | 45,911,382 | 12 | 230 | .004052397 |
| A | 45,233,260 | 0.9711 | 46,579,405 | 11 | 157 | .000822604 |
| A | 47,148,070 | 1.0163 | 46,391,882 | 11 | 111 | .003034938 |
| D3 | 125,246,650 | 1.0132 | 123,614,933 | 15 | 2,386 | .031186096 |
| F1 | 15,248,450 | 0.9857 | 15,469,666 | 7 | 34 | .003124330 |
| F1 | 14,837,270 | 0.9976 | 14,872,965 | 6 | 10 | .003670870 |
| Random Totals: | 333,901,260 | 333,432,415 | 74 | 3,238 | ||
| Catg J Exception Values: | 1,235,459 | 1,111,484 | ||||
| Catg D1 Exception Values: | 4,415,600 | 3,101,804 | ||||
| Total Test Values (4): | 339,552,319 | 337,645,703 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 16,882,285 |
Confidence Interval Values (5)
| State Lower Limit: | 320,763,418 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 339,552,319 | (Within Confidence Interval) |
| State Upper Limit: | 354,527,988 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 435,268,988 | (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