2009 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 | 35,488,077 | 0.8757 | 40,525,382 | 17 | 1,394 | .054053187 |
| A | 40,435,594 | 0.9596 | 42,137,968 | 17 | 972 | .007216346 |
| A | 52,696,914 | 0.9404 | 56,036,701 | 19 | 792 | .036378488 |
| A | 53,226,507 | 1.0331 | 51,521,157 | 18 | 455 | .028260840 |
| D3 | 11,381,963 | 0.9755 | 11,667,825 | 12 | 1,042 | .003619494 |
| F1 | 10,457,346 | 0.9409 | 11,114,195 | 7 | 177 | .004012726 |
| F1 | 10,478,443 | 0.8536 | 12,275,589 | 9 | 52 | .026959745 |
| F1 | 8,350,345 | 0.8596 | 9,714,222 | 8 | 19 | .021565179 |
| F1 | 15,615,646 | 0.9221 | 16,934,873 | 5 | 15 | .023226269 |
| L1 | 10,635,598 | 1.0367 | 10,259,089 | 7 | 127 | .011767226 |
| L1 | 11,634,188 | 0.9782 | 11,893,466 | 5 | 21 | .001656752 |
| L1 | 7,941,258 | 0.9264 | 8,572,170 | 4 | 6 | .013555953 |
| L1 | 23,205,053 | 0.9740 | 23,824,490 | 3 | 6 | .001784710 |
| Random Totals: | 291,546,932 | 306,477,127 | 131 | 5,078 | ||
| Catg J Exception Values: | 13,386,568 | 13,437,369 | ||||
| Catg D1 Exception Values: | 15,609,979 | 16,469,367 | ||||
| Catg L1 Exception Values: | 21,338,822 | 22,890,590 | ||||
| Total Test Values (4): | 341,882,301 | 359,274,453 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 17,963,723 |
Confidence Interval Values (5)
| State Lower Limit: | 341,310,730 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 341,882,301 | (Within Confidence Interval) |
| State Upper Limit: | 377,238,176 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 331,505,523 | (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