2009 Confidence Interval Detail
212/Smith
212-901/Arp ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 44,541,376 | 0.9953 | 44,751,709 | 9 | 640 | .001426838 |
| A | 46,825,866 | 0.9699 | 48,279,066 | 15 | 277 | .014600444 |
| A | 46,709,369 | 0.9489 | 49,224,754 | 7 | 169 | .035864848 |
| A | 43,332,961 | 0.9143 | 47,394,686 | 7 | 80 | .006503827 |
| D3 | 58,084,227 | 1.0241 | 56,717,339 | 20 | 2,848 | .137127187 |
| G1 | 36,953,107 | 1.0126 | 36,493,292 | 9 | 134 | .017540273 |
| G1 | 37,070,951 | 1.0499 | 35,309,030 | 6 | 74 | .014035017 |
| G1 | 37,356,435 | 1.0122 | 36,906,180 | 7 | 40 | .005374324 |
| G1 | 35,952,823 | 1.0139 | 35,459,930 | 4 | 11 | .006026014 |
| Random Totals: | 386,827,115 | 390,535,986 | 84 | 4,273 | ||
| Catg D1 Exception Values: | 5,827,109 | 5,239,236 | ||||
| Total Test Values (4): | 392,654,224 | 395,775,222 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 19,788,761 |
Confidence Interval Values (5)
| State Lower Limit: | 375,986,461 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 392,654,224 | (Within Confidence Interval) |
| State Upper Limit: | 415,563,983 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 421,396,802 | (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