2011 Confidence Interval Detail
072/Erath
072-902/Dublin ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 18,844,480 | 0.9773 | 19,282,186 | 11 | 551 | .016190902 |
| A | 18,366,450 | 0.9465 | 19,404,596 | 12 | 307 | .005348060 |
| A | 19,744,650 | 0.9434 | 20,929,245 | 11 | 224 | .013544067 |
| A | 18,842,790 | 0.9875 | 19,081,306 | 10 | 133 | .002764099 |
| D3 | 127,487,840 | 0.9702 | 131,403,669 | 19 | 3,248 | .021081464 |
| F1 | 5,286,460 | 0.9365 | 5,644,912 | 12 | 91 | .010273931 |
| F1 | 4,772,150 | 0.9541 | 5,001,729 | 9 | 31 | .009718155 |
| F1 | 5,173,860 | 0.9556 | 5,414,253 | 11 | 16 | .006791024 |
| F1 | 4,894,380 | 0.9900 | 4,943,818 | 5 | 7 | .001707577 |
| Random Totals: | 223,413,060 | 231,105,714 | 100 | 4,608 | ||
| Catg D1 Exception Values: | 14,908,960 | 13,488,659 | ||||
| Total Test Values (4): | 238,322,020 | 244,594,373 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 12,229,719 |
Confidence Interval Values (5)
| State Lower Limit: | 232,364,654 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 238,322,020 | (Within Confidence Interval) |
| State Upper Limit: | 256,824,092 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 250,988,776 | (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