2008 Confidence Interval Detail
168/Mitchell
168-903/Westbrook ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 5,240,610 | 0.6607 | 7,931,906 | 21 | 215 | .091984929 |
| A | 5,423,610 | 0.9242 | 5,868,438 | 13 | 124 | .030186595 |
| A | 5,808,310 | 0.8967 | 6,477,428 | 11 | 87 | .006152461 |
| A | 6,169,690 | 0.8012 | 7,700,562 | 14 | 51 | .028777621 |
| G1 | 82,079,987 | 0.9679 | 84,802,136 | 6 | 9 | .008918837 |
| Random Totals: | 104,722,207 | 112,780,470 | 65 | 486 | ||
| Catg D1 Exception Values: | 10,465,610 | 12,013,949 | ||||
| Catg G1 Exception Values: | 315,009,668 | 322,143,439 | ||||
| Total Test Values (4): | 430,197,485 | 446,937,858 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 22,346,893 |
Confidence Interval Values (5)
| State Lower Limit: | 424,590,965 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 430,197,485 | (Within Confidence Interval) |
| State Upper Limit: | 469,284,751 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 476,023,330 | (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