2008 Confidence Interval Detail
091/Grayson
091-909/Whitesboro ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 43,838,542 | 0.6711 | 65,323,412 | 10 | 1,177 | .200181389 |
| A | 39,756,123 | 0.9613 | 41,356,624 | 11 | 579 | .080565981 |
| A | 51,094,956 | 1.0290 | 49,654,962 | 9 | 496 | .005329852 |
| A | 62,108,319 | 0.9551 | 65,028,080 | 8 | 367 | .016734268 |
| D3 | 106,593,007 | 0.9996 | 106,635,661 | 27 | 2,941 | .010700941 |
| F1 | 8,768,644 | 0.8081 | 10,850,939 | 8 | 100 | .106540464 |
| F1 | 8,583,855 | 0.8272 | 10,377,001 | 5 | 33 | .111448892 |
| F1 | 9,508,196 | 0.9279 | 10,247,005 | 6 | 18 | .121513081 |
| F1 | 8,465,450 | 0.7792 | 10,864,284 | 4 | 8 | .087577791 |
| G1 | 7,334,940 | 0.9712 | 7,552,451 | 6 | 43 | .012524036 |
| G1 | 6,951,070 | 0.9852 | 7,055,491 | 5 | 13 | .007221857 |
| G1 | 8,657,349 | 1.0241 | 8,453,617 | 3 | 6 | .014337009 |
| Random Totals: | 361,660,451 | 393,399,527 | 102 | 5,781 | ||
| Catg D1 Exception Values: | 6,688,413 | 4,427,811 | ||||
| Catg G1 Exception Values: | 5,436,970 | 5,737,719 | ||||
| Total Test Values (4): | 373,785,834 | 403,565,057 |
Margin of Error
| Margin of Error Percent: | 5.3438219 |
|---|---|
| Margin of Error Value: | 21,565,798 |
Confidence Interval Values (5)
| Local Test Value: | 373,785,834 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 381,999,259 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 425,130,855 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 370,875,702 | (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