2007 Confidence Interval Detail
034/Cass
034-908/Marietta CISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,761,100 | 0.9987 | 1,763,392 | 7 | 52 | .007965554 |
| A | 1,752,614 | 0.9672 | 1,812,049 | 6 | 30 | .001822615 |
| A | 1,675,977 | 0.8867 | 1,890,129 | 6 | 23 | .017896065 |
| A | 1,718,290 | 1.1716 | 1,466,618 | 6 | 15 | .003380918 |
| D3 | 8,835,460 | 1.0252 | 8,618,279 | 24 | 649 | .013060633 |
| Random Totals: | 15,743,441 | 15,550,467 | 49 | 769 | ||
| Catg J Exception Values: | 1,789,890 | 1,956,740 | ||||
| Catg D1 Exception Values: | 1,858,000 | 1,915,268 | ||||
| Total Test Values (4): | 19,391,331 | 19,422,475 |
Margin of Error
| Margin of Error Percent: | 5.0000013 |
|---|---|
| Margin of Error Value: | 971,124 |
Confidence Interval Values (5)
| State Lower Limit: | 18,451,351 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 19,391,331 | (Within Confidence Interval) |
| State Upper Limit: | 20,393,599 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 15,865,619 | (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
