2007 Confidence Interval Detail
079/Fort Bend
079-907/Fort Bend ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 3,935,990,700 | 0.9546 | 4,123,183,218 | 38 | 32,193 | .001691736 |
| A | 3,935,401,436 | 0.9823 | 4,006,313,179 | 46 | 23,074 | .003418740 |
| A | 3,935,568,074 | 0.9670 | 4,069,873,913 | 47 | 16,268 | .003091417 |
| A | 3,935,387,478 | 0.9626 | 4,088,289,506 | 43 | 8,915 | .001914458 |
| B | 89,579,522 | 0.9938 | 90,138,380 | 8 | 249 | .011411318 |
| B | 89,851,003 | 1.0082 | 89,120,217 | 4 | 7 | .004102640 |
| B | 91,198,679 | 1.0194 | 89,463,095 | 3 | 5 | .002690415 |
| B | 75,102,822 | 1.0438 | 71,951,353 | 2 | 3 | .000816459 |
| C | 111,042,641 | 0.9942 | 111,690,446 | 34 | 1,600 | .002220438 |
| C | 111,090,089 | 1.0160 | 109,340,639 | 17 | 293 | .006889112 |
| C | 112,405,886 | 0.9983 | 112,597,301 | 7 | 106 | .005596946 |
| C | 109,540,702 | 0.9965 | 109,925,441 | 10 | 44 | .000209787 |
| F1 | 482,252,425 | 0.9582 | 503,289,945 | 14 | 668 | .020000819 |
| F1 | 484,607,479 | 0.9270 | 522,769,665 | 8 | 214 | .032786285 |
| F1 | 482,988,983 | 0.9484 | 509,267,169 | 8 | 75 | .012242911 |
| F1 | 476,034,580 | 0.9817 | 484,908,404 | 5 | 21 | .043522538 |
| L1 | 173,495,465 | 0.9409 | 184,393,097 | 7 | 2,547 | .011535476 |
| L1 | 173,435,458 | 1.0677 | 162,438,380 | 7 | 314 | .017714925 |
| L1 | 174,559,103 | 0.9315 | 187,395,709 | 6 | 84 | .013053670 |
| L1 | 171,518,258 | 1.0757 | 159,448,041 | 6 | 26 | .036470296 |
| Random Totals: | 19,151,050,783 | 19,785,797,098 | 320 | 86,706 | ||
| Catg D1 Exception Values: | 5,491,790 | 4,775,955 | ||||
| Total Test Values (4): | 19,156,542,573 | 19,790,573,053 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 989,528,653 |
Confidence Interval Values (5)
| State Lower Limit: | 18,801,044,400 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 19,156,542,573 | (Within Confidence Interval) |
| State Upper Limit: | 20,780,101,706 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 20,042,067,120 | (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