2008 Confidence Interval Detail
070/Ellis
070-912/Waxahachie ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 298,496,421 | 0.9798 | 304,650,358 | 54 | 3,532 | .002814302 |
| A | 307,662,386 | 0.9916 | 310,268,643 | 65 | 2,405 | .001739039 |
| A | 310,655,406 | 0.9881 | 314,396,727 | 67 | 1,821 | .004138239 |
| A | 333,549,095 | 0.9964 | 334,754,210 | 49 | 1,177 | .007228901 |
| D3 | 149,172,493 | 0.9733 | 153,264,659 | 23 | 3,525 | .002300676 |
| F1 | 72,818,505 | 0.9498 | 76,667,198 | 9 | 285 | .009762732 |
| F1 | 82,040,641 | 0.9961 | 82,361,852 | 6 | 102 | .001561218 |
| F1 | 74,805,291 | 0.9024 | 82,895,934 | 7 | 37 | .017371693 |
| F1 | 103,675,429 | 0.9820 | 105,575,793 | 5 | 14 | .001556190 |
| L1 | 35,914,220 | 0.9335 | 38,472,651 | 9 | 386 | .043136631 |
| L1 | 32,682,974 | 0.9099 | 35,919,303 | 7 | 78 | .086336567 |
| L1 | 38,872,800 | 1.1345 | 34,264,257 | 6 | 21 | .032489546 |
| Random Totals: | 1,840,345,661 | 1,873,491,585 | 307 | 13,383 | ||
| Catg D1 Exception Values: | 13,279,461 | 11,813,473 | ||||
| Catg L1 Exception Values: | 61,844,220 | 53,766,539 | ||||
| Total Test Values (4): | 1,915,469,342 | 1,939,071,597 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 96,953,580 |
Confidence Interval Values (5)
| State Lower Limit: | 1,842,118,017 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,915,469,342 | (Within Confidence Interval) |
| State Upper Limit: | 2,036,025,177 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,686,284,732 | (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