2009 Confidence Interval Detail
079/Fort Bend
079-910/Stafford MSD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 128,722,523 | 0.9856 | 130,603,209 | 11 | 1,139 | .004770996 |
| A | 120,983,990 | 0.9752 | 124,060,695 | 11 | 815 | .004482805 |
| A | 98,856,140 | 0.9733 | 101,568,006 | 11 | 559 | .003241440 |
| A | 93,341,210 | 0.9743 | 95,803,356 | 9 | 409 | .003403879 |
| B | 169,249,440 | 1.0498 | 161,220,652 | 7 | 26 | .027102867 |
| F1 | 198,236,758 | 0.9697 | 204,431,018 | 10 | 264 | .014562748 |
| F1 | 171,884,152 | 1.0415 | 165,035,192 | 10 | 72 | .018642247 |
| F1 | 184,675,067 | 0.9435 | 195,734,040 | 8 | 33 | .011037747 |
| F1 | 179,962,138 | 0.9921 | 181,395,160 | 4 | 11 | .017668844 |
| L1 | 76,516,295 | 1.0709 | 71,450,458 | 7 | 680 | .008613388 |
| L1 | 86,670,460 | 1.0267 | 84,416,538 | 7 | 97 | .004571924 |
| L1 | 70,426,560 | 1.0766 | 65,415,716 | 6 | 23 | .030971225 |
| L1 | 79,397,800 | 1.0397 | 76,366,067 | 4 | 11 | .003147216 |
| Random Totals: | 1,658,922,533 | 1,657,500,107 | 105 | 4,139 | ||
| Catg D1 Exception Values: | 48,400 | 36,303 | ||||
| Total Test Values (4): | 1,658,970,933 | 1,657,536,410 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 82,876,821 |
Confidence Interval Values (5)
| State Lower Limit: | 1,574,659,589 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,658,970,933 | (Within Confidence Interval) |
| State Upper Limit: | 1,740,413,231 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,137,196,472 | (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