2008 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 | 43,700,878 | 0.8398 | 52,037,245 | 11 | 1,643 | .232938600 |
| A | 38,083,013 | 0.9373 | 40,630,548 | 9 | 897 | .070055497 |
| A | 41,310,058 | 0.9792 | 42,187,559 | 10 | 611 | .095085342 |
| A | 38,523,815 | 1.0113 | 38,093,360 | 9 | 325 | .017940472 |
| D3 | 11,937,174 | 0.9254 | 12,899,475 | 16 | 1,057 | .046132047 |
| F1 | 10,253,745 | 0.8076 | 12,696,564 | 7 | 185 | .072246389 |
| F1 | 11,310,867 | 1.0853 | 10,421,881 | 6 | 56 | .031889227 |
| F1 | 10,461,066 | 0.8725 | 11,989,760 | 5 | 21 | .025327245 |
| F1 | 10,040,399 | 0.9649 | 10,405,637 | 4 | 9 | .006943823 |
| L1 | 10,812,788 | 1.1115 | 9,728,104 | 8 | 144 | .027757274 |
| L1 | 14,370,517 | 0.9755 | 14,731,437 | 6 | 23 | .011072030 |
| L1 | 13,894,463 | 1.0020 | 13,866,730 | 3 | 7 | .005718912 |
| Random Totals: | 254,698,783 | 269,688,300 | 94 | 4,978 | ||
| Catg J Exception Values: | 14,330,368 | 14,618,729 | ||||
| Catg D1 Exception Values: | 14,980,195 | 16,863,097 | ||||
| Catg L1 Exception Values: | 15,479,254 | 18,909,279 | ||||
| Total Test Values (4): | 299,488,600 | 320,079,405 |
Margin of Error
| Margin of Error Percent: | 5.9868922 |
|---|---|
| Margin of Error Value: | 19,162,809 |
Confidence Interval Values (5)
| Local Test Value: | 299,488,600 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 300,916,596 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 339,242,214 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 299,567,492 | (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