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246/Williamson
2018 Confidence Interval Detail
246/Williamson
166-905/Thorndale ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,869,342 | 1.2761 | 3,815,800 | 15 | 24 | .026255898 |
| E | 14,271,402 | 1.0300 | 13,855,730 | 20 | 116 | .048813255 |
| Random Totals: | 19,140,744 | 17,671,530 | 35 | 140 | ||
| Catg J Exception Values: | 722,600 | 803,997 | ||||
| Catg D1 Exception Values: | 1,655,237 | 1,866,241 | ||||
| Total Test Values (4): | 21,518,581 | 20,341,768 |
Margin of Error
| Margin of Error Percent: | 6.2909281 |
|---|---|
| Margin of Error Value: | 1,279,686 |
Confidence Interval Values (5)
| State Lower Limit: | 19,062,082 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 21,518,581 | (Within Confidence Interval) |
| State Upper Limit: | 21,621,454 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 19,247,918 | (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