2007 Confidence Interval Detail
070/Ellis
070-911/Red Oak ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 239,089,613 | 0.9990 | 239,328,942 | 7 | 2,116 | .002116162 |
| A | 239,034,466 | 1.0517 | 227,283,889 | 8 | 1,636 | .004149484 |
| A | 239,038,409 | 0.8844 | 270,283,140 | 12 | 1,291 | .035479735 |
| A | 238,854,292 | 0.9917 | 240,853,375 | 12 | 825 | .016090996 |
| F1 | 18,161,293 | 0.8790 | 20,661,312 | 7 | 97 | .016098592 |
| F1 | 17,790,947 | 0.8428 | 21,109,334 | 8 | 34 | .050254605 |
| F1 | 18,597,959 | 0.9250 | 20,105,902 | 6 | 19 | .022344494 |
| Random Totals: | 1,010,566,979 | 1,039,625,894 | 60 | 6,018 | ||
| Catg D1 Exception Values: | 1,464,128 | 1,426,868 | ||||
| Catg F1 Exception Values: | 17,046,000 | 19,684,353 | ||||
| Total Test Values (4): | 1,029,077,107 | 1,060,737,115 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 53,036,856 |
Confidence Interval Values (5)
| State Lower Limit: | 1,007,700,259 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,029,077,107 | (Within Confidence Interval) |
| State Upper Limit: | 1,113,773,971 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,131,493,455 | (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