2008 Confidence Interval Detail
198/Robertson
198-906/Mumford ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| D3 | 2,246,980 | 0.9011 | 2,493,597 | 10 | 228 | .048467453 |
| G1 | 16,065,209 | 1.0787 | 14,893,120 | 8 | 20 | .012823399 |
| G1 | 16,757,753 | 0.9902 | 16,923,604 | 5 | 11 | .003875353 |
| G1 | 16,856,049 | 1.0140 | 16,623,322 | 3 | 6 | .000807499 |
| Random Totals: | 51,925,991 | 50,933,643 | 26 | 265 | ||
| Catg J Exception Values: | 4,619,972 | 4,608,380 | ||||
| Catg D1 Exception Values: | 4,823,270 | 5,370,285 | ||||
| Catg G1 Exception Values: | 13,009,704 | 12,542,245 | ||||
| Total Test Values (4): | 74,378,937 | 73,454,553 |
Margin of Error
| Margin of Error Percent: | 5.0000005 |
|---|---|
| Margin of Error Value: | 3,672,728 |
Confidence Interval Values (5)
| State Lower Limit: | 69,781,825 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 74,378,937 | (Within Confidence Interval) |
| State Upper Limit: | 77,127,281 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 98,911,732 | (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