2008 Confidence Interval Detail
025/Brown
025-906/Zephyr ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,179,420 | 1.0203 | 1,155,954 | 8 | 52 | .004537834 |
| A | 1,079,750 | 1.0037 | 1,075,770 | 5 | 26 | .000618300 |
| A | 1,295,470 | 0.9772 | 1,325,696 | 10 | 20 | .001012084 |
| A | 1,192,950 | 0.9465 | 1,260,380 | 5 | 10 | .004880156 |
| D3 | 16,628,399 | 1.0001 | 16,626,736 | 34 | 766 | .026642024 |
| Random Totals: | 21,375,989 | 21,444,536 | 62 | 874 | ||
| Catg J Exception Values: | 6,911,800 | 6,913,646 | ||||
| Catg D1 Exception Values: | 2,949,080 | 2,817,239 | ||||
| Total Test Values (4): | 31,236,869 | 31,175,421 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,558,771 |
Confidence Interval Values (5)
| State Lower Limit: | 29,616,650 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 31,236,869 | (Within Confidence Interval) |
| State Upper Limit: | 32,734,192 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 30,483,595 | (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