2010 Confidence Interval Detail
091/Grayson
091-905/Howe ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 30,511,292 | 0.9847 | 30,985,368 | 11 | 431 | .007986241 |
| A | 28,303,411 | 1.0017 | 28,255,377 | 12 | 268 | .009091108 |
| A | 30,414,465 | 0.9884 | 30,771,413 | 12 | 221 | .009219045 |
| A | 33,010,094 | 0.9810 | 33,649,433 | 12 | 168 | .000911556 |
| D3 | 47,952,816 | 1.1352 | 42,241,734 | 20 | 1,334 | .183261452 |
| F1 | 3,100,227 | 0.9197 | 3,370,911 | 8 | 32 | .059321564 |
| F1 | 3,958,165 | 1.0705 | 3,697,492 | 6 | 12 | .132780699 |
| F1 | 3,071,333 | 0.9285 | 3,307,844 | 4 | 6 | .035315775 |
| Random Totals: | 180,321,803 | 176,279,572 | 85 | 2,472 | ||
| Catg J Exception Values: | 6,755,732 | 6,589,523 | ||||
| Catg D1 Exception Values: | 5,944,008 | 4,693,766 | ||||
| Catg F1 Exception Values: | 3,242,337 | 2,324,803 | ||||
| Total Test Values (4): | 196,263,880 | 189,887,664 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 9,494,383 |
Confidence Interval Values (5)
| State Lower Limit: | 180,393,281 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 196,263,880 | (Within Confidence Interval) |
| State Upper Limit: | 199,382,047 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 196,271,441 | (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