2006 Confidence Interval Detail
070/Ellis
070-908/Midlothian ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 316,756,585 | 0.9739 | 325,245,492 | 53 | 2,527 | .001624928 |
| A | 319,161,987 | 0.9799 | 325,708,733 | 58 | 1,819 | .002669872 |
| A | 314,081,324 | 0.9703 | 323,695,068 | 51 | 1,319 | .003221485 |
| A | 316,559,515 | 0.9978 | 317,257,481 | 49 | 857 | .002122350 |
| D3 | 94,200,954 | 1.1758 | 80,116,477 | 10 | 2,232 | .098559263 |
| Random Totals: | 1,360,760,365 | 1,372,023,251 | 221 | 8,754 | ||
| Catg D1 Exception Values: | 4,904,360 | 4,225,761 | ||||
| Total Test Values (4): | 1,365,664,725 | 1,376,249,012 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 68,812,451 |
Confidence Interval Values (5)
| State Lower Limit: | 1,307,436,561 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,365,664,725 | (Within Confidence Interval) |
| State Upper Limit: | 1,445,061,463 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,291,486,444 | (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