2009 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 | 39,293,520 | 0.9358 | 41,989,228 | 12 | 320 | .002058696 |
| A | 36,238,210 | 0.9777 | 37,064,754 | 15 | 193 | .001507551 |
| A | 37,908,330 | 0.9876 | 38,384,295 | 7 | 142 | .002064345 |
| A | 47,150,200 | 0.9859 | 47,824,526 | 6 | 112 | .002356873 |
| C | 4,864,120 | 1.1352 | 4,284,813 | 9 | 138 | .011685408 |
| C | 5,329,400 | 0.9952 | 5,355,105 | 9 | 119 | .000536119 |
| C | 5,043,250 | 1.0007 | 5,039,722 | 9 | 70 | .004070071 |
| C | 5,709,280 | 1.0057 | 5,676,922 | 10 | 42 | .006421187 |
| D3 | 127,203,700 | 1.0261 | 123,968,132 | 20 | 2,221 | .009204240 |
| F1 | 7,277,360 | 0.8931 | 8,148,427 | 8 | 23 | .052622358 |
| F1 | 8,444,980 | 0.9886 | 8,542,363 | 7 | 12 | .003182683 |
| F1 | 4,176,970 | 0.9618 | 4,342,868 | 2 | 2 | .000029893 |
| Random Totals: | 328,639,320 | 330,621,155 | 114 | 3,394 | ||
| Catg J Exception Values: | 3,968,380 | 3,953,936 | ||||
| Catg D1 Exception Values: | 4,378,390 | 3,341,426 | ||||
| Catg F1 Exception Values: | 6,036,770 | 6,119,670 | ||||
| Total Test Values (4): | 343,022,860 | 344,036,187 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 17,201,809 |
Confidence Interval Values (5)
| State Lower Limit: | 326,834,378 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 343,022,860 | (Within Confidence Interval) |
| State Upper Limit: | 361,237,996 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 381,469,178 | (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