2009 Confidence Interval Detail
245/Willacy
245-904/San Perlita ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,013,589 | 0.8858 | 7,917,802 | 12 | 280 | .033755962 |
| A | 7,096,289 | 0.9353 | 7,587,180 | 12 | 142 | .015226410 |
| A | 8,055,704 | 0.9733 | 8,276,692 | 10 | 90 | .024058779 |
| A | 8,804,452 | 1.0450 | 8,425,313 | 9 | 51 | .031436389 |
| C | 957,582 | 1.0581 | 905,001 | 7 | 210 | .050714630 |
| C | 946,730 | 0.9023 | 1,049,241 | 7 | 94 | .007522602 |
| C | 961,549 | 0.9025 | 1,065,428 | 6 | 39 | .034682156 |
| C | 751,986 | 1.0668 | 704,899 | 5 | 15 | .011006108 |
| D3 | 3,830,972 | 0.9991 | 3,834,423 | 10 | 616 | .036574826 |
| F1 | 4,398,386 | 0.9916 | 4,435,645 | 8 | 62 | .017461059 |
| Random Totals: | 42,817,239 | 44,201,624 | 86 | 1,599 | ||
| Catg J Exception Values: | 1,448,316 | 1,541,221 | ||||
| Catg D1 Exception Values: | 16,706,081 | 17,214,035 | ||||
| Total Test Values (4): | 60,971,636 | 62,956,880 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 3,147,844 |
Confidence Interval Values (5)
| State Lower Limit: | 59,809,036 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 60,971,636 | (Within Confidence Interval) |
| State Upper Limit: | 66,104,724 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 63,366,289 | (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