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246/Williamson
2016 Confidence Interval Detail
246/Williamson
246-912/Thrall ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 15,823,482 | 0.8396 | 18,846,453 | 10 | 245 | .173100258 |
| A | 18,403,494 | 0.9014 | 20,416,568 | 9 | 160 | .028364344 |
| A | 17,152,090 | 1.0447 | 16,418,197 | 9 | 98 | .082988728 |
| A | 19,674,458 | 1.1542 | 17,045,970 | 8 | 65 | .014813026 |
| E | 100,906,481 | 0.9419 | 107,130,779 | 17 | 953 | .100181742 |
| Random Totals: | 171,960,005 | 179,857,967 | 53 | 1,521 | ||
| Catg J Exception Values: | 7,954,133 | 8,744,506 | ||||
| Catg D1 Exception Values: | 27,992,224 | 28,918,629 | ||||
| Total Test Values (4): | 207,906,362 | 217,521,102 |
Margin of Error
| Margin of Error Percent: | 8.0715539 |
|---|---|
| Margin of Error Value: | 17,557,333 |
Confidence Interval Values (5)
| State Lower Limit: | 199,963,769 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 207,906,362 | (Within Confidence Interval) |
| State Upper Limit: | 235,078,435 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 211,989,293 | (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