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Grayson County
2024 Confidence Interval Detail
Grayson County
091-902/Collinsville ISD
Category Summary
| (1) Category |
(1) Stratum Number |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|---|
| A | 2 | 61,795,022 | 1.0420 | 59,304,244 | 12 | 325 | 0.002704528 |
| A | 3 | 59,792,459 | 0.9850 | 60,703,004 | 14 | 220 | 0.001549699 |
| A | 4 | 64,214,046 | 0.9937 | 64,621,159 | 12 | 181 | 0.002003712 |
| A | 5 | 60,232,061 | 1.0078 | 59,765,887 | 15 | 116 | 0.000892594 |
| E | 0 | 178,693,840 | 1.0054 | 177,734,076 | 20 | 580 | 0.014864923 |
| Random Totals: | 424,727,428 | 422,128,370 | 73 | 1,422 | |||
| CATG D1 EXCEPTION VALUES: | 1,772,704 | 1,803,676 | |||||
| Total Test Values | 426,500,132 | 423,932,046 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 21,196,602 |
Confidence Interval Values(5)
| Local Test Value: | 426,500,132 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 402,735,444 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 445,128,648 | (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