2007 Confidence Interval Detail
057/Dallas
057-919/Sunnyvale ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 91,754,079 | 0.9395 | 97,662,671 | 13 | 444 | .014767745 |
| A | 91,638,968 | 0.9239 | 99,187,107 | 14 | 339 | .010742825 |
| A | 91,519,995 | 0.9888 | 92,556,629 | 17 | 272 | .007135003 |
| A | 91,573,822 | 0.9749 | 93,931,503 | 14 | 192 | .002426465 |
| F1 | 8,614,544 | 0.8126 | 10,601,211 | 7 | 29 | .132222454 |
| F1 | 8,347,200 | 0.7866 | 10,611,747 | 4 | 12 | .039689836 |
| F1 | 10,032,773 | 0.9630 | 10,418,248 | 3 | 6 | .007471837 |
| L1 | 11,233,070 | 0.9712 | 11,566,176 | 7 | 22 | .010183999 |
| L1 | 26,149,182 | 1.0047 | 26,026,856 | 3 | 4 | .000036996 |
| Random Totals: | 430,863,633 | 452,562,148 | 82 | 1,320 | ||
| Catg D1 Exception Values: | 645,263 | 710,115 | ||||
| Catg F1 Exception Values: | 23,334,000 | 24,540,671 | ||||
| Catg L1 Exception Values: | 62,776,750 | 61,568,589 | ||||
| Total Test Values (4): | 517,619,646 | 539,381,523 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 26,969,076 |
Confidence Interval Values (5)
| State Lower Limit: | 512,412,447 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 517,619,646 | (Within Confidence Interval) |
| State Upper Limit: | 566,350,599 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 564,940,862 | (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