2008 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 | 347,619,947 | 0.9322 | 372,902,754 | 63 | 2,901 | .019921973 |
| A | 387,649,490 | 0.9307 | 416,513,904 | 72 | 2,561 | .007088627 |
| A | 340,421,000 | 0.9713 | 350,479,769 | 61 | 1,761 | .008895953 |
| A | 358,196,890 | 0.9665 | 370,612,406 | 74 | 1,298 | .007810538 |
| D3 | 104,998,410 | 1.0421 | 100,756,559 | 12 | 1,465 | .028679286 |
| F1 | 47,754,560 | 0.9444 | 50,566,031 | 5 | 42 | .005719496 |
| F1 | 67,392,580 | 0.9536 | 70,671,749 | 3 | 19 | .001520339 |
| Random Totals: | 1,654,032,877 | 1,732,503,172 | 290 | 10,047 | ||
| Catg D1 Exception Values: | 4,468,880 | 3,082,776 | ||||
| Catg F1 Exception Values: | 34,305,960 | 37,465,605 | ||||
| Total Test Values (4): | 1,692,807,717 | 1,773,051,553 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 88,652,578 |
Confidence Interval Values (5)
| State Lower Limit: | 1,684,398,975 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,692,807,717 | (Within Confidence Interval) |
| State Upper Limit: | 1,861,704,131 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,341,579,983 | (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