2006 Confidence Interval Detail
240/Webb
240-901/Laredo ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 262,392,902 | 0.9643 | 272,107,126 | 19 | 6,195 | .023245849 |
| A | 262,209,917 | 0.9332 | 280,979,337 | 22 | 4,076 | .018306387 |
| A | 262,400,745 | 0.9609 | 273,078,099 | 27 | 2,971 | .010841560 |
| A | 261,993,474 | 0.9667 | 271,018,386 | 31 | 1,830 | .011072494 |
| B | 32,140,804 | 0.9657 | 33,282,390 | 7 | 225 | .070187621 |
| B | 32,129,618 | 1.0026 | 32,046,298 | 7 | 134 | .017517671 |
| B | 32,321,732 | 0.9312 | 34,709,764 | 6 | 78 | .016010135 |
| B | 31,479,830 | 1.0312 | 30,527,376 | 6 | 32 | .003344940 |
| F1 | 140,480,113 | 0.9734 | 144,318,998 | 7 | 964 | .012175756 |
| F1 | 140,193,672 | 0.9291 | 150,891,908 | 7 | 338 | .008493608 |
| F1 | 141,689,811 | 0.9645 | 146,904,936 | 8 | 130 | .000374647 |
| F1 | 138,431,206 | 1.0144 | 136,466,094 | 4 | 9 | .000819372 |
| L1 | 39,899,978 | 0.9909 | 40,266,402 | 7 | 834 | .005508762 |
| L1 | 39,847,991 | 0.9773 | 40,773,551 | 7 | 209 | .002631452 |
| L1 | 40,245,471 | 0.9806 | 41,041,680 | 7 | 61 | .004018149 |
| L1 | 39,168,543 | 0.9110 | 42,995,108 | 4 | 11 | .012791307 |
| Random Totals: | 1,897,025,807 | 1,971,407,453 | 176 | 18,097 | ||
| Catg D1 Exception Values: | 1,740 | 2,315 | ||||
| Total Test Values (4): | 1,897,027,547 | 1,971,409,768 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 98,570,488 |
Confidence Interval Values (5)
| State Lower Limit: | 1,872,839,280 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,897,027,547 | (Within Confidence Interval) |
| State Upper Limit: | 2,069,980,256 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,883,008,169 | (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