2009 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 | 4,038,386,377 | 0.9830 | 4,108,226,223 | 49 | 33,517 | .006552104 |
| A | 4,090,228,083 | 0.9913 | 4,126,125,374 | 48 | 23,623 | .004442898 |
| A | 4,622,924,736 | 0.9778 | 4,727,883,755 | 53 | 17,949 | .007042571 |
| A | 4,941,503,267 | 0.9549 | 5,174,890,844 | 50 | 10,195 | .005002521 |
| B | 137,730,335 | 1.0395 | 132,496,715 | 7 | 144 | .000121745 |
| B | 77,392,830 | 0.8935 | 86,617,605 | 5 | 5 | .005452049 |
| B | 89,422,470 | 0.9721 | 91,988,962 | 3 | 5 | .001871254 |
| C | 129,425,110 | 1.0388 | 124,590,980 | 30 | 1,736 | .008287121 |
| C | 134,972,310 | 0.9857 | 136,930,415 | 7 | 289 | .001373801 |
| C | 105,788,850 | 0.9152 | 115,590,964 | 7 | 87 | .020066651 |
| C | 128,639,390 | 0.9936 | 129,467,985 | 6 | 39 | .000750841 |
| F1 | 725,900,718 | 0.9150 | 793,334,118 | 8 | 768 | .023421278 |
| F1 | 732,898,996 | 1.0295 | 711,898,005 | 7 | 253 | .008883306 |
| F1 | 748,501,983 | 0.9880 | 757,593,100 | 7 | 96 | .005081230 |
| F1 | 678,310,051 | 0.9768 | 694,420,609 | 6 | 25 | .015432420 |
| L1 | 170,698,006 | 1.0002 | 170,663,873 | 8 | 2,921 | .006884105 |
| L1 | 165,318,362 | 1.0545 | 156,774,170 | 8 | 387 | .004373362 |
| L1 | 189,561,129 | 0.9415 | 201,339,489 | 8 | 121 | .010414904 |
| L1 | 230,821,546 | 0.9904 | 233,058,912 | 6 | 36 | .003663507 |
| Random Totals: | 22,138,424,549 | 22,673,892,098 | 323 | 92,196 | ||
| Catg D1 Exception Values: | 5,416,590 | 4,378,232 | ||||
| Catg B Exception Values: | 127,743,680 | 130,053,666 | ||||
| Total Test Values (4): | 22,271,584,819 | 22,808,323,996 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,140,416,200 |
Confidence Interval Values (5)
| State Lower Limit: | 21,667,907,796 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 22,271,584,819 | (Within Confidence Interval) |
| State Upper Limit: | 23,948,740,196 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 23,355,814,802 | (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