2008 Confidence Interval Detail
234/Van Zandt
234-907/Wills Point ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 46,381,340 | 0.9272 | 50,023,016 | 22 | 1,042 | .101332297 |
| A | 46,999,630 | 1.0010 | 46,952,677 | 20 | 624 | .029530706 |
| A | 49,209,550 | 0.9643 | 51,031,370 | 19 | 440 | .016453874 |
| A | 43,486,080 | 0.9535 | 45,606,796 | 21 | 242 | .016772840 |
| D3 | 130,981,770 | 0.9312 | 140,659,117 | 44 | 4,370 | .043518722 |
| F1 | 8,677,750 | 0.9505 | 9,129,669 | 7 | 112 | .014110326 |
| F1 | 8,746,040 | 1.0397 | 8,412,080 | 7 | 43 | .016968787 |
| F1 | 10,355,920 | 0.9183 | 11,277,273 | 6 | 21 | .006013939 |
| F1 | 7,952,620 | 0.9093 | 8,745,870 | 4 | 4 | .037801789 |
| Random Totals: | 352,790,700 | 371,837,868 | 150 | 6,898 | ||
| Catg D1 Exception Values: | 8,940,140 | 6,157,806 | ||||
| Total Test Values (4): | 361,730,840 | 377,995,674 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 18,899,784 |
Confidence Interval Values (5)
| State Lower Limit: | 359,095,890 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 361,730,840 | (Within Confidence Interval) |
| State Upper Limit: | 396,895,458 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 365,315,989 | (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