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Brewster County
2021 Confidence Interval Detail
Brewster County
022-902/Marathon ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,200,916 | 1.0271 | 4,090,075 | 15 | 86 | 0.182682760 |
| A | 6,823,842 | 0.9973 | 6,842,316 | 15 | 77 | 0.075540746 |
| A | 7,641,272 | 1.1304 | 6,759,795 | 15 | 57 | 0.046207648 |
| A | 13,046,594 | 1.1255 | 11,591,821 | 15 | 56 | 0.025672484 |
| E | 15,218,771 | 0.9921 | 15,339,957 | 20 | 521 | 0.241939636 |
| F1 | 3,908,585 | 0.9950 | 3,928,226 | 7 | 27 | 0.001217367 |
| Random Totals: | 50,839,980 | 48,552,190 | 87 | 824 | ||
| CATG D1 EXCEPTION VALUES: | 16,692,638 | 17,696,976 | ||||
| CATG F1 EXCEPTION VALUES: | 3,011,200 | 3,135,507 | ||||
| CATG J EXCEPTION VALUES: | 39,795,990 | 41,501,011 | ||||
| Total Test Values | 110,339,808 | 110,885,684 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 5,544,284 |
Confidence Interval Values(5)
| Local Test Value: | 110,339,808 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 105,341,400 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 116,429,968 | (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