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Somervell County
2020 Confidence Interval Detail
Somervell County
213-901/Glen Rose ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 82,821,615 | 0.9521 | 86,988,357 | 14 | 753 | 0.012898248 |
| A | 84,734,810 | 0.9091 | 93,207,359 | 17 | 431 | 0.007574662 |
| A | 91,813,930 | 0.9524 | 96,402,698 | 12 | 340 | 0.005310263 |
| A | 118,497,144 | 0.9668 | 122,566,347 | 18 | 296 | 0.001989671 |
| E | 254,039,943 | 0.9246 | 274,756,590 | 20 | 1,413 | 0.009065069 |
| F1 | 17,419,916 | 0.9720 | 17,921,724 | 9 | 110 | 0.027848932 |
| F1 | 17,843,204 | 0.8101 | 22,025,928 | 8 | 50 | 0.084054770 |
| F1 | 18,514,248 | 0.9917 | 18,669,202 | 7 | 23 | 0.020094121 |
| F1 | 13,216,513 | 0.9099 | 14,524,971 | 7 | 9 | 0.017163595 |
| Random Totals: | 698,901,323 | 747,063,176 | 112 | 3,425 | ||
| CATG D1 EXCEPTION VALUES: | 6,399,668 | 6,262,885 | ||||
| CATG J EXCEPTION VALUES: | 49,967,510 | 53,627,922 | ||||
| Total Test Values | 755,268,501 | 806,953,983 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 40,347,699 |
Confidence Interval Values(5)
| Local Test Value: | 755,268,501 | OUTSIDE CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 766,606,284 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 847,301,682 | (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