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057/Dallas
2016 Confidence Interval Detail
057/Dallas
057-907/Duncanville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 604,867,030 | 0.9570 | 632,044,963 | 11 | 6,326 | .016142796 |
| A | 604,699,390 | 0.9818 | 615,908,933 | 15 | 4,624 | .010487483 |
| A | 604,837,640 | 0.9970 | 606,657,613 | 20 | 3,551 | .003654595 |
| A | 604,513,080 | 1.0508 | 575,288,428 | 14 | 2,414 | .005036370 |
| B | 59,635,660 | 0.6821 | 87,429,497 | 11 | 207 | .012594719 |
| B | 41,913,770 | 0.7157 | 58,563,323 | 6 | 7 | .033145221 |
| B | 45,656,910 | 0.7883 | 57,918,191 | 4 | 6 | .023250723 |
| B | 96,712,700 | 0.8644 | 111,884,197 | 3 | 9 | .038908168 |
| F1 | 161,765,580 | 0.9496 | 170,351,285 | 12 | 398 | .006762361 |
| F1 | 157,043,020 | 0.8593 | 182,756,918 | 11 | 134 | .010112809 |
| F1 | 165,937,930 | 0.7796 | 212,850,090 | 10 | 60 | .023212443 |
| F1 | 182,866,180 | 0.8591 | 212,857,851 | 8 | 24 | .010024894 |
| L1 | 78,064,790 | 1.0416 | 74,946,995 | 10 | 343 | .015949561 |
| L1 | 85,722,970 | 1.0171 | 84,281,752 | 9 | 62 | .003310436 |
| L1 | 82,370,770 | 0.9971 | 82,610,340 | 6 | 15 | .000178192 |
| L1 | 76,498,670 | 1.0027 | 76,292,680 | 3 | 6 | .000038210 |
| Random Totals: | 3,653,106,090 | 3,842,643,056 | 153 | 18,186 | ||
| Catg D1 Exception Values: | 82,954 | 85,827 | ||||
| Total Test Values (4): | 3,653,189,044 | 3,842,728,883 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 192,136,444 |
Confidence Interval Values (5)
| State Lower Limit: | 3,650,592,439 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 3,653,189,044 | (Within Confidence Interval) |
| State Upper Limit: | 4,034,865,327 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 3,815,840,148 | (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, D3, 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