2007 Confidence Interval Detail
178/Nueces
178-909/Robstown ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 42,471,078 | 0.9603 | 44,226,885 | 11 | 1,578 | .042234290 |
| A | 42,488,339 | 0.8847 | 48,025,702 | 12 | 1,001 | .043619916 |
| A | 42,469,131 | 0.9731 | 43,643,131 | 9 | 626 | .005576984 |
| A | 42,419,998 | 1.0061 | 42,162,805 | 9 | 348 | .002555080 |
| D3 | 12,047,325 | 1.0420 | 11,561,732 | 13 | 1,037 | .078002573 |
| F1 | 9,912,296 | 0.9242 | 10,725,272 | 7 | 179 | .004878543 |
| F1 | 10,086,213 | 0.9013 | 11,190,739 | 7 | 51 | .009311089 |
| F1 | 10,049,113 | 0.9161 | 10,969,450 | 5 | 20 | .003349995 |
| F1 | 9,431,416 | 0.9743 | 9,680,197 | 4 | 7 | .002403367 |
| L1 | 11,177,182 | 0.9894 | 11,296,929 | 8 | 140 | .014318835 |
| L1 | 11,023,810 | 0.9769 | 11,284,482 | 5 | 22 | .005229571 |
| L1 | 11,464,318 | 0.9961 | 11,509,204 | 4 | 7 | .002270308 |
| L1 | 10,551,093 | 0.9971 | 10,581,780 | 2 | 3 | .000091718 |
| Random Totals: | 265,591,312 | 276,858,308 | 96 | 5,019 | ||
| Catg J Exception Values: | 12,808,016 | 13,210,116 | ||||
| Catg D1 Exception Values: | 14,972,795 | 15,387,531 | ||||
| Total Test Values (4): | 293,372,123 | 305,455,955 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 15,272,798 |
Confidence Interval Values (5)
| State Lower Limit: | 290,183,157 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 293,372,123 | (Within Confidence Interval) |
| State Upper Limit: | 320,728,753 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 276,227,370 | (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