2011 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 | 7,995,228 | 0.9705 | 8,238,257 | 9 | 291 | .002193077 |
| A | 8,096,707 | 0.9716 | 8,333,375 | 8 | 143 | .004098970 |
| A | 8,525,277 | 1.0078 | 8,459,295 | 7 | 85 | .002413327 |
| A | 7,950,229 | 1.0113 | 7,861,395 | 7 | 40 | .003374948 |
| C | 903,655 | 0.9233 | 978,723 | 11 | 187 | .015285478 |
| C | 1,035,184 | 0.9754 | 1,061,292 | 10 | 100 | .004086462 |
| C | 877,294 | 0.9401 | 933,192 | 10 | 38 | .006893441 |
| C | 877,790 | 1.0009 | 877,001 | 10 | 18 | .001697997 |
| D3 | 4,208,517 | 0.9789 | 4,299,231 | 16 | 613 | .008697066 |
| F1 | 1,028,021 | 1.0177 | 1,010,141 | 8 | 22 | .005876923 |
| F1 | 823,917 | 0.9612 | 857,175 | 5 | 8 | .001947962 |
| Random Totals: | 42,321,819 | 42,909,077 | 101 | 1,545 | ||
| Catg J Exception Values: | 2,246,340 | 2,475,437 | ||||
| Catg D1 Exception Values: | 16,873,116 | 17,492,713 | ||||
| Catg F1 Exception Values: | 1,627,947 | 1,721,778 | ||||
| Total Test Values (4): | 63,069,222 | 64,599,005 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 3,229,950 |
Confidence Interval Values (5)
| State Lower Limit: | 61,369,055 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 63,069,222 | (Within Confidence Interval) |
| State Upper Limit: | 67,828,955 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 66,256,504 | (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