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Madison County
2020 Confidence Interval Detail
Madison County
154-903/North Zulch ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,620,250 | 0.6245 | 12,202,162 | 11 | 155 | 0.149288685 |
| A | 6,640,850 | 0.8039 | 8,260,791 | 10 | 53 | 0.050954892 |
| A | 7,183,880 | 0.9437 | 7,612,462 | 9 | 32 | 0.005216390 |
| A | 9,326,560 | 0.9725 | 9,590,293 | 9 | 31 | 0.003805478 |
| E | 66,553,260 | 0.8260 | 80,572,954 | 21 | 634 | 0.135197760 |
| G1 | 30,986,009 | 0.9991 | 31,013,922 | 9 | 57 | 0.000031439 |
| G1 | 31,289,593 | 0.9961 | 31,412,100 | 7 | 20 | 0.000019902 |
| G1 | 30,498,950 | 0.9873 | 30,891,269 | 5 | 9 | 0.000075540 |
| G1 | 27,430,730 | 1.0044 | 27,310,564 | 3 | 4 | 0.000021218 |
| Random Totals: | 217,530,082 | 238,866,517 | 84 | 995 | ||
| CATG D1 EXCEPTION VALUES: | 3,040,151 | 2,408,086 | ||||
| CATG J EXCEPTION VALUES: | 13,787,210 | 15,990,058 | ||||
| Total Test Values | 234,357,443 | 257,264,661 |
Margin of Error
| Margin of Error Percent: | 5.0508435 |
|---|---|
| Margin of Error Value: | 12,994,035 |
Confidence Interval Values(5)
| Local Test Value: | 234,357,443 | OUTSIDE CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 244,270,626 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 270,258,696 | (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