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246/Williamson
2018 Confidence Interval Detail
246/Williamson
246-904/Georgetown ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,700,780,817 | 0.9763 | 1,742,067,824 | 241 | 7,756 | .005249068 |
| A | 1,966,028,864 | 0.9883 | 1,989,303,717 | 269 | 6,915 | .006515990 |
| A | 1,963,978,022 | 0.9712 | 2,022,217,897 | 220 | 5,318 | .007943224 |
| A | 2,184,415,995 | 0.9745 | 2,241,576,188 | 191 | 3,962 | .010492066 |
| B | 101,461,737 | 0.9655 | 105,087,247 | 12 | 432 | .020816516 |
| B | 124,073,042 | 0.7298 | 170,009,649 | 9 | 216 | .172456165 |
| B | 93,784,118 | 0.9452 | 99,221,454 | 4 | 6 | .008717077 |
| B | 156,600,833 | 0.9554 | 163,911,276 | 2 | 5 | .000960644 |
| E | 352,376,233 | 0.9408 | 374,549,567 | 21 | 1,436 | .057443000 |
| F1 | 319,740,826 | 0.9811 | 325,900,342 | 10 | 506 | .007598993 |
| F1 | 330,907,228 | 0.9541 | 346,826,567 | 9 | 149 | .010857202 |
| F1 | 332,705,710 | 0.9573 | 347,545,921 | 8 | 49 | .003662617 |
| F1 | 362,943,502 | 1.0066 | 360,563,781 | 6 | 13 | .003867414 |
| L1 | 93,387,598 | 1.0831 | 86,222,508 | 11 | 612 | .018886448 |
| L1 | 83,487,436 | 0.9617 | 86,812,349 | 11 | 93 | .011318332 |
| L1 | 108,312,793 | 1.0171 | 106,491,784 | 8 | 31 | .010706781 |
| L1 | 84,973,221 | 1.0053 | 84,525,237 | 3 | 6 | .000087875 |
| Random Totals: | 10,359,957,975 | 10,652,833,308 | 1,035 | 27,505 | ||
| Catg D1 Exception Values: | 10,067,743 | 11,112,838 | ||||
| Total Test Values (4): | 10,370,025,718 | 10,663,946,146 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 533,197,307 |
Confidence Interval Values (5)
| State Lower Limit: | 10,130,748,839 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 10,370,025,718 | (Within Confidence Interval) |
| State Upper Limit: | 11,197,143,453 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 9,761,278,191 | (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