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254/Zavala
2018 Confidence Interval Detail
254/Zavala
254-901/Crystal City ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 27,492,472 | 0.9209 | 29,853,917 | 10 | 844 | .037106375 |
| A | 26,905,048 | 1.0370 | 25,945,080 | 10 | 523 | .023838561 |
| A | 28,072,054 | 0.9786 | 28,685,933 | 12 | 384 | .013851188 |
| A | 28,101,130 | 0.9994 | 28,118,001 | 11 | 203 | .020764997 |
| E | 45,890,289 | 0.7433 | 61,738,583 | 22 | 777 | .132793622 |
| G1 | 85,921,353 | 1.0026 | 85,698,537 | 9 | 58 | .000096097 |
| G1 | 89,842,570 | 1.0319 | 87,065,190 | 7 | 25 | .011216494 |
| G1 | 91,537,445 | 1.0063 | 90,964,369 | 4 | 8 | .000292268 |
| Random Totals: | 423,762,361 | 438,069,610 | 85 | 2,822 | ||
| Catg D1 Exception Values: | 40,240,715 | 39,294,192 | ||||
| Catg G1 Exception Values: | 183,313,450 | 184,019,543 | ||||
| Total Test Values (4): | 647,316,526 | 661,383,345 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 33,069,167 |
Confidence Interval Values (5)
| State Lower Limit: | 628,314,178 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 647,316,526 | (Within Confidence Interval) |
| State Upper Limit: | 694,452,512 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 791,302,181 | (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, D2, E, 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