2007 Confidence Interval Detail
070/Ellis
070-909/Milford ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,177,896 | 1.0138 | 4,121,026 | 9 | 131 | .030755544 |
| A | 4,199,364 | 0.9815 | 4,278,517 | 10 | 74 | .041191151 |
| A | 4,143,179 | 0.9910 | 4,180,806 | 9 | 52 | .004130321 |
| A | 4,152,134 | 1.0697 | 3,881,587 | 10 | 29 | .037336863 |
| D3 | 12,448,020 | 0.8520 | 14,610,352 | 20 | 821 | .155407654 |
| Random Totals: | 29,120,593 | 31,072,288 | 58 | 1,107 | ||
| Catg J Exception Values: | 6,710,590 | 6,390,110 | ||||
| Catg D1 Exception Values: | 3,874,985 | 3,289,018 | ||||
| Total Test Values (4): | 39,706,168 | 40,751,416 |
Margin of Error
| Margin of Error Percent: | 6.5661669 |
|---|---|
| Margin of Error Value: | 2,675,806 |
Confidence Interval Values (5)
| State Lower Limit: | 38,075,610 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 39,706,168 | (Within Confidence Interval) |
| State Upper Limit: | 43,427,222 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 51,247,825 | (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