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246/Williamson
2016 Confidence Interval Detail
246/Williamson
246-914/Coupland ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 3,466,518 | 0.9337 | 3,712,668 | 9 | 57 | .213644384 |
| A | 5,693,313 | 0.9721 | 5,856,715 | 8 | 55 | .060060718 |
| A | 5,269,310 | 1.1685 | 4,509,465 | 7 | 33 | .010896440 |
| A | 5,405,084 | 1.0374 | 5,210,222 | 6 | 19 | .021766478 |
| E | 26,022,911 | 1.0631 | 24,478,328 | 14 | 336 | .081756755 |
| Random Totals: | 45,857,136 | 43,767,398 | 44 | 500 | ||
| Catg J Exception Values: | 2,696,992 | 2,978,445 | ||||
| Catg D1 Exception Values: | 7,682,341 | 7,958,445 | ||||
| Total Test Values (4): | 56,236,469 | 54,704,288 |
Margin of Error
| Margin of Error Percent: | 7.3306429 |
|---|---|
| Margin of Error Value: | 4,010,176 |
Confidence Interval Values (5)
| State Lower Limit: | 50,694,112 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 56,236,469 | (Within Confidence Interval) |
| State Upper Limit: | 58,714,464 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 59,961,961 | (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