2009 Confidence Interval Detail
129/Kaufman
129-902/Forney ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 366,783,566 | 0.9607 | 381,787,828 | 20 | 3,086 | .024202288 |
| A | 363,773,735 | 0.9468 | 384,213,915 | 21 | 2,404 | .005795487 |
| A | 373,646,570 | 0.9947 | 375,637,448 | 18 | 1,949 | .015904713 |
| A | 362,166,655 | 1.0262 | 352,920,147 | 20 | 1,322 | .017521558 |
| D3 | 75,132,727 | 1.0456 | 71,856,089 | 11 | 1,368 | .027624115 |
| F1 | 44,489,570 | 0.9402 | 47,319,262 | 8 | 158 | .083278036 |
| F1 | 45,088,360 | 0.8964 | 50,299,375 | 9 | 40 | .019103853 |
| F1 | 51,599,640 | 0.9925 | 51,989,562 | 6 | 19 | .007081996 |
| F1 | 50,157,090 | 0.9987 | 50,222,379 | 5 | 7 | .000364575 |
| Random Totals: | 1,732,837,913 | 1,766,246,005 | 118 | 10,353 | ||
| Catg D1 Exception Values: | 4,475,490 | 3,004,459 | ||||
| Total Test Values (4): | 1,737,313,403 | 1,769,250,464 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 88,462,523 |
Confidence Interval Values (5)
| State Lower Limit: | 1,680,787,941 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,737,313,403 | (Within Confidence Interval) |
| State Upper Limit: | 1,857,712,987 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,288,973,866 | (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