2007 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 | 17,993,374 | 0.7374 | 24,401,104 | 7 | 540 | .072211572 |
| A | 17,918,198 | 0.8626 | 20,772,314 | 14 | 299 | .026978510 |
| A | 17,974,145 | 0.9761 | 18,414,245 | 10 | 202 | .044468332 |
| A | 17,871,203 | 0.9992 | 17,885,511 | 9 | 127 | .015539070 |
| D3 | 127,073,984 | 0.8750 | 145,227,410 | 12 | 3,753 | .092760038 |
| F1 | 4,839,881 | 0.7025 | 6,889,510 | 11 | 91 | .089348698 |
| F1 | 4,771,721 | 0.7854 | 6,075,530 | 8 | 33 | .070733087 |
| F1 | 4,702,350 | 0.7258 | 6,478,851 | 5 | 15 | .040058208 |
| F1 | 4,754,241 | 0.8561 | 5,553,371 | 5 | 7 | .091712581 |
| L1 | 4,575,535 | 0.9723 | 4,705,888 | 8 | 97 | .005645561 |
| L1 | 4,773,182 | 1.0221 | 4,669,976 | 5 | 19 | .000868329 |
| L1 | 8,432,853 | 0.9586 | 8,797,051 | 4 | 7 | .011419638 |
| Random Totals: | 235,680,667 | 269,870,761 | 98 | 5,190 | ||
| Catg D1 Exception Values: | 18,119,040 | 14,396,988 | ||||
| Total Test Values (4): | 253,799,707 | 284,267,749 |
Margin of Error
| Margin of Error Percent: | 9.1685828 |
|---|---|
| Margin of Error Value: | 26,063,324 |
Confidence Interval Values (5)
| Local Test Value: | 253,799,707 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 258,204,425 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 310,331,073 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 255,092,689 | (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