2009 Confidence Interval Detail
016/Blanco
016-902/Blanco ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 19,206,350 | 0.9651 | 19,900,891 | 7 | 238 | .009443772 |
| A | 18,819,860 | 1.0067 | 18,694,606 | 7 | 149 | .014591720 |
| A | 19,395,050 | 1.0119 | 19,166,963 | 7 | 100 | .008952731 |
| A | 21,467,060 | 1.0415 | 20,611,675 | 6 | 54 | .007048823 |
| C | 20,581,460 | 0.9572 | 21,501,734 | 14 | 699 | .047903544 |
| C | 21,836,370 | 0.9599 | 22,748,588 | 12 | 511 | .020216045 |
| C | 11,462,270 | 0.9707 | 11,808,252 | 11 | 200 | .004896660 |
| C | 16,844,940 | 1.0513 | 16,022,962 | 10 | 178 | .025755602 |
| D3 | 309,696,680 | 0.9841 | 314,700,417 | 33 | 4,392 | .006957069 |
| F1 | 9,795,090 | 0.9676 | 10,123,078 | 6 | 71 | .073992349 |
| F1 | 10,118,590 | 0.9162 | 11,044,084 | 6 | 37 | .022849368 |
| F1 | 10,862,080 | 1.0815 | 10,043,532 | 5 | 24 | .017432819 |
| F1 | 12,288,200 | 0.9547 | 12,871,268 | 4 | 9 | .009964604 |
| Random Totals: | 502,374,000 | 509,238,050 | 128 | 6,662 | ||
| Catg D1 Exception Values: | 8,802,062 | 8,534,654 | ||||
| Total Test Values (4): | 511,176,062 | 517,772,704 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 25,888,635 |
Confidence Interval Values (5)
| State Lower Limit: | 491,884,069 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 511,176,062 | (Within Confidence Interval) |
| State Upper Limit: | 543,661,339 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 511,379,269 | (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