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Grayson County
2020 Confidence Interval Detail
Grayson County
091-907/Tioga ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 21,051,426 | 0.8772 | 23,998,434 | 10 | 171 | 0.043852458 |
| A | 19,613,106 | 0.9771 | 20,072,772 | 10 | 104 | 0.010351133 |
| A | 24,035,451 | 0.9860 | 24,376,725 | 14 | 99 | 0.003294238 |
| A | 26,689,453 | 0.9344 | 28,563,199 | 9 | 68 | 0.041842397 |
| E | 36,978,603 | 0.9430 | 39,213,789 | 10 | 167 | 0.088004547 |
| F1 | 9,534,124 | 0.9367 | 10,178,418 | 9 | 39 | 0.052449925 |
| Random Totals: | 137,902,163 | 146,403,337 | 62 | 648 | ||
| CATG D1 EXCEPTION VALUES: | 1,749,097 | 1,105,855 | ||||
| Total Test Values | 139,651,260 | 147,509,192 |
Margin of Error
| Margin of Error Percent: | 5.9646921 |
|---|---|
| Margin of Error Value: | 8,798,469 |
Confidence Interval Values(5)
| Local Test Value: | 139,651,260 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 138,710,723 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 156,307,661 | (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