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Grayson County
2022 Confidence Interval Detail
Grayson County
091-902/Collinsville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 25,902,268 | 0.9020 | 28,716,483 | 15 | 217 | 0.033120970 |
| A | 35,708,633 | 0.9279 | 38,483,277 | 15 | 198 | 0.028154849 |
| A | 56,546,245 | 0.9007 | 62,780,332 | 15 | 242 | 0.016721458 |
| A | 90,955,693 | 0.9983 | 91,110,581 | 15 | 236 | 0.006917018 |
| E | 117,600,595 | 1.0723 | 109,671,356 | 20 | 479 | 0.041587219 |
| Random Totals: | 326,713,434 | 330,762,029 | 80 | 1,372 | ||
| CATG D1 EXCEPTION VALUES: | 2,242,268 | 1,834,849 | ||||
| Total Test Values | 328,955,702 | 332,596,878 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 16,629,844 |
Confidence Interval Values(5)
| Local Test Value: | 328,955,702 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 315,967,034 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 349,226,722 | (State Test Value plus Margin of Error Percent) |
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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values