2009 Confidence Interval Detail
246/Williamson
246-905/Granger ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 11,765,802 | 0.9840 | 11,957,116 | 14 | 254 | .020261590 |
| A | 9,837,626 | 0.8928 | 11,018,846 | 14 | 129 | .015171540 |
| A | 11,414,448 | 0.9079 | 12,572,363 | 12 | 103 | .021133032 |
| A | 9,468,490 | 1.0094 | 9,380,315 | 11 | 45 | .012778713 |
| D3 | 36,370,852 | 0.9969 | 36,483,952 | 25 | 1,580 | .013455186 |
| F1 | 1,788,843 | 0.9694 | 1,845,309 | 6 | 26 | .016790130 |
| F1 | 1,364,686 | 0.9854 | 1,384,906 | 5 | 11 | .004055659 |
| F1 | 1,727,297 | 0.9375 | 1,842,450 | 4 | 8 | .004806686 |
| F1 | 2,020,897 | 1.0985 | 1,839,688 | 3 | 5 | .030254102 |
| Random Totals: | 85,758,941 | 88,324,945 | 94 | 2,161 | ||
| Catg J Exception Values: | 5,910,989 | 6,021,490 | ||||
| Catg D1 Exception Values: | 15,652,147 | 11,969,983 | ||||
| Total Test Values (4): | 107,322,077 | 106,316,418 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 5,315,821 |
Confidence Interval Values (5)
| State Lower Limit: | 101,000,597 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 107,322,077 | (Within Confidence Interval) |
| State Upper Limit: | 111,632,239 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 98,625,914 | (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