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122/Jeff Davis
2017 Confidence Interval Detail
122/Jeff Davis
122-901/Fort Davis ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 27,687,870 | 0.8324 | 33,262,698 | 15 | 453 | .112964800 |
| A | 27,694,490 | 0.8135 | 34,043,626 | 15 | 233 | .063960659 |
| A | 32,328,190 | 0.9456 | 34,188,018 | 15 | 180 | .020641965 |
| A | 32,904,030 | 0.8952 | 36,756,066 | 15 | 108 | .007238907 |
| E | 28,379,810 | 0.8223 | 34,512,720 | 20 | 269 | .237296571 |
| F1 | 3,325,550 | 1.0713 | 3,104,219 | 8 | 34 | .050733393 |
| F1 | 4,939,060 | 0.9224 | 5,354,575 | 13 | 22 | .136093731 |
| F1 | 1,599,040 | 0.8183 | 1,954,100 | 3 | 4 | .098146647 |
| Random Totals: | 158,858,040 | 183,176,022 | 104 | 1,303 | ||
| Catg D1 Exception Values: | 13,359,340 | 13,637,908 | ||||
| Catg F1 Exception Values: | 6,607,880 | 5,668,200 | ||||
| Total Test Values (4): | 178,825,260 | 202,482,130 |
Margin of Error
| Margin of Error Percent: | 5.1871773 |
|---|---|
| Margin of Error Value: | 10,503,107 |
Confidence Interval Values (5)
| Local Test Value: | 178,825,260 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 191,979,023 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 212,985,237 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 216,720,626 | (See ISD Summary Worksheet) |
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
(6) Includes local value of unstudied property categories and sub-categories