2008 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 | 364,181,945 | 0.9953 | 365,901,683 | 57 | 3,064 | .002471439 |
| A | 384,210,790 | 1.0113 | 379,917,720 | 56 | 2,278 | .003698055 |
| A | 411,667,359 | 1.0035 | 410,231,549 | 68 | 1,771 | .004301449 |
| A | 462,894,534 | 0.9841 | 470,373,472 | 56 | 1,233 | .003916343 |
| D3 | 104,483,271 | 0.9633 | 108,463,896 | 19 | 2,380 | .011078707 |
| F1 | 28,771,123 | 0.8729 | 32,960,388 | 7 | 139 | .047141346 |
| F1 | 34,103,658 | 0.9609 | 35,491,371 | 6 | 54 | .015721059 |
| F1 | 31,239,141 | 1.0349 | 30,185,661 | 7 | 19 | .025330914 |
| Random Totals: | 1,821,551,821 | 1,833,525,740 | 276 | 10,938 | ||
| Catg D1 Exception Values: | 4,807,145 | 3,564,126 | ||||
| Catg F1 Exception Values: | 26,096,400 | 29,348,213 | ||||
| Total Test Values (4): | 1,852,455,366 | 1,866,438,079 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 93,321,904 |
Confidence Interval Values (5)
| State Lower Limit: | 1,773,116,175 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,852,455,366 | (Within Confidence Interval) |
| State Upper Limit: | 1,959,759,983 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,527,146,032 | (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