2008 Confidence Interval Detail
246/Williamson
246-905/Granger ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 12,158,664 | 0.9868 | 12,321,305 | 10 | 257 | .041395986 |
| A | 8,152,031 | 0.8858 | 9,203,015 | 8 | 108 | .016859789 |
| A | 11,140,301 | 0.9023 | 12,346,560 | 9 | 109 | .025244797 |
| A | 12,992,982 | 0.9988 | 13,008,592 | 8 | 67 | .016449877 |
| D3 | 39,177,373 | 1.0042 | 39,013,516 | 22 | 1,558 | .046650431 |
| F1 | 1,168,248 | 0.9269 | 1,260,382 | 6 | 21 | .018989084 |
| F1 | 1,932,132 | 1.0161 | 1,901,518 | 5 | 17 | .005001358 |
| F1 | 2,463,826 | 0.9167 | 2,687,712 | 5 | 11 | .027004924 |
| F1 | 1,383,030 | 1.0996 | 1,257,757 | 2 | 3 | .036188084 |
| Random Totals: | 90,568,587 | 93,000,357 | 75 | 2,151 | ||
| Catg J Exception Values: | 5,689,764 | 5,829,400 | ||||
| Catg D1 Exception Values: | 12,852,181 | 11,307,514 | ||||
| Total Test Values (4): | 109,110,532 | 110,137,271 |
Margin of Error
| Margin of Error Percent: | 5.0000004 |
|---|---|
| Margin of Error Value: | 5,506,864 |
Confidence Interval Values (5)
| State Lower Limit: | 104,630,407 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 109,110,532 | (Within Confidence Interval) |
| State Upper Limit: | 115,644,135 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 99,831,989 | (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