2008 Confidence Interval Detail
229/Tyler
229-905/Spurger ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,330,640 | 0.9125 | 4,745,907 | 8 | 203 | .053573297 |
| A | 5,593,488 | 0.8889 | 6,292,595 | 15 | 139 | .042989103 |
| A | 5,317,240 | 0.8694 | 6,115,988 | 15 | 88 | .053646204 |
| A | 8,983,295 | 0.9935 | 9,042,068 | 24 | 87 | .032695862 |
| D3 | 15,703,400 | 0.9058 | 17,336,498 | 23 | 1,079 | .073478757 |
| G1 | 19,191,913 | 1.0088 | 19,024,497 | 13 | 22 | .002018110 |
| Random Totals: | 59,119,976 | 62,557,553 | 98 | 1,618 | ||
| Catg D1 Exception Values: | 9,545,790 | 9,511,893 | ||||
| Catg G1 Exception Values: | 8,571,946 | 9,113,086 | ||||
| Total Test Values (4): | 77,237,712 | 81,182,532 |
Margin of Error
| Margin of Error Percent: | 5.0000005 |
|---|---|
| Margin of Error Value: | 4,059,127 |
Confidence Interval Values (5)
| State Lower Limit: | 77,123,405 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 77,237,712 | (Within Confidence Interval) |
| State Upper Limit: | 85,241,659 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 71,241,560 | (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