2006 Confidence Interval Detail
057/Dallas
057-916/Richardson ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,234,674,483 | 0.9996 | 2,235,568,710 | 44 | 17,313 | .001832531 |
| A | 2,234,819,842 | 1.0069 | 2,219,505,256 | 96 | 12,669 | .001453180 |
| A | 2,234,423,552 | 0.9957 | 2,244,073,066 | 72 | 9,529 | .014060602 |
| A | 2,234,349,792 | 0.9995 | 2,235,467,526 | 71 | 6,007 | .000681009 |
| B | 298,206,332 | 1.0232 | 291,444,812 | 15 | 644 | .011460724 |
| B | 298,037,141 | 0.9659 | 308,559,003 | 6 | 55 | .004976104 |
| B | 291,119,680 | 0.9645 | 301,834,816 | 8 | 27 | .006502624 |
| B | 293,757,458 | 0.9573 | 306,860,397 | 7 | 11 | .005703223 |
| F1 | 998,557,249 | 0.9822 | 1,016,653,685 | 20 | 805 | .002726141 |
| F1 | 999,880,024 | 0.9936 | 1,006,320,475 | 10 | 242 | .000419593 |
| F1 | 1,008,670,860 | 0.9588 | 1,052,013,830 | 6 | 87 | .005111999 |
| F1 | 979,632,333 | 0.8234 | 1,189,740,506 | 6 | 18 | .037790578 |
| L1 | 324,890,765 | 0.9508 | 341,702,529 | 7 | 2,302 | .280714904 |
| L1 | 325,102,709 | 1.0545 | 308,300,340 | 8 | 344 | .021120377 |
| L1 | 329,195,655 | 1.0037 | 327,982,121 | 7 | 96 | .016386370 |
| L1 | 318,754,741 | 0.9626 | 331,139,353 | 7 | 20 | .002091354 |
| Random Totals: | 15,404,072,616 | 15,717,166,425 | 390 | 50,169 | ||
| Catg D1 Exception Values: | 9,544 | 10,967 | ||||
| Total Test Values (4): | 15,404,082,160 | 15,717,177,392 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 785,858,870 |
Confidence Interval Values (5)
| State Lower Limit: | 14,931,318,522 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 15,404,082,160 | (Within Confidence Interval) |
| State Upper Limit: | 16,503,036,262 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 16,695,725,395 | (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