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091/Grayson
2016 Confidence Interval Detail
091/Grayson
091-908/Van Alstyne ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 67,661,292 | 0.9756 | 69,353,518 | 12 | 685 | .023357553 |
| A | 83,914,014 | 0.9681 | 86,679,077 | 28 | 503 | .011332518 |
| A | 89,056,192 | 1.0164 | 87,619,237 | 14 | 394 | .002058719 |
| A | 115,962,344 | 1.0148 | 114,271,131 | 20 | 335 | .001211737 |
| E | 93,901,468 | 0.9822 | 95,603,205 | 15 | 521 | .006938010 |
| F1 | 8,910,517 | 0.7331 | 12,154,572 | 10 | 65 | .173276501 |
| F1 | 11,496,936 | 0.9312 | 12,346,366 | 8 | 29 | .009227744 |
| F1 | 9,630,999 | 0.9930 | 9,698,891 | 6 | 11 | .015232277 |
| F1 | 10,705,274 | 0.8285 | 12,921,272 | 3 | 7 | .095465161 |
| Random Totals: | 491,239,036 | 500,647,269 | 116 | 2,550 | ||
| Catg D1 Exception Values: | 3,137,625 | 2,643,218 | ||||
| Total Test Values (4): | 494,376,661 | 503,290,487 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 25,164,524 |
Confidence Interval Values (5)
| State Lower Limit: | 478,125,963 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 494,376,661 | (Within Confidence Interval) |
| State Upper Limit: | 528,455,011 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 516,695,865 | (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