2008 Confidence Interval Detail
057/Dallas
057-913/Lancaster ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 261,882,360 | 0.9415 | 278,154,392 | 15 | 3,093 | .026708925 |
| A | 266,500,140 | 0.9795 | 272,077,734 | 15 | 2,434 | .001121340 |
| A | 257,960,400 | 0.9934 | 259,674,250 | 22 | 1,975 | .000686536 |
| A | 257,000,220 | 1.0158 | 253,002,776 | 30 | 1,485 | .003212085 |
| F1 | 64,695,120 | 0.8651 | 74,783,401 | 14 | 167 | .035260094 |
| F1 | 66,659,260 | 0.8786 | 75,869,861 | 10 | 36 | .023172157 |
| F1 | 42,288,330 | 0.8956 | 47,217,876 | 6 | 8 | .009638311 |
| F1 | 74,320,220 | 0.9389 | 79,156,694 | 3 | 5 | .000522797 |
| L1 | 25,856,250 | 1.1145 | 23,199,865 | 7 | 187 | .011926596 |
| L1 | 27,254,860 | 1.0198 | 26,725,691 | 7 | 31 | .004773718 |
| L1 | 18,606,500 | 0.9167 | 20,297,262 | 4 | 6 | .024171279 |
| Random Totals: | 1,363,023,660 | 1,410,159,802 | 133 | 9,427 | ||
| Catg J Exception Values: | 126,247,899 | 144,382,317 | ||||
| Catg D1 Exception Values: | 1,371,327 | 1,774,231 | ||||
| Catg L1 Exception Values: | 19,508,180 | 17,811,589 | ||||
| Total Test Values (4): | 1,510,151,066 | 1,574,127,939 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 78,706,397 |
Confidence Interval Values (5)
| State Lower Limit: | 1,495,421,542 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,510,151,066 | (Within Confidence Interval) |
| State Upper Limit: | 1,652,834,336 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,698,056,655 | (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