2009 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 | 3,974,355 | 1.0009 | 3,970,781 | 14 | 115 | .016667158 |
| A | 4,027,090 | 0.8988 | 4,480,518 | 9 | 67 | .014105211 |
| A | 3,914,070 | 1.0494 | 3,729,817 | 10 | 47 | .018609731 |
| A | 3,489,320 | 1.0633 | 3,281,595 | 9 | 25 | .008142568 |
| D3 | 10,925,810 | 1.0562 | 10,344,452 | 21 | 648 | .029188539 |
| Random Totals: | 26,330,645 | 25,807,163 | 63 | 902 | ||
| Catg J Exception Values: | 20,745,650 | 21,265,371 | ||||
| Catg D1 Exception Values: | 3,543,681 | 2,844,579 | ||||
| Total Test Values (4): | 50,619,976 | 49,917,113 |
Margin of Error
| Margin of Error Percent: | 5.0000007 |
|---|---|
| Margin of Error Value: | 2,495,856 |
Confidence Interval Values (5)
| State Lower Limit: | 47,421,257 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 50,619,976 | (Within Confidence Interval) |
| State Upper Limit: | 52,412,969 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 51,413,316 | (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