2008 Confidence Interval Detail
194/Red River
194-905/Detroit ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,578,290 | 0.8323 | 5,500,769 | 8 | 181 | .017444351 |
| A | 4,589,890 | 0.9369 | 4,899,018 | 7 | 95 | .022079778 |
| A | 4,608,450 | 1.0489 | 4,393,603 | 8 | 65 | .022256886 |
| A | 4,921,370 | 1.0312 | 4,772,469 | 7 | 38 | .012046434 |
| D3 | 32,803,290 | 1.0691 | 30,683,089 | 41 | 2,368 | .055415701 |
| Random Totals: | 51,501,290 | 50,248,948 | 71 | 2,747 | ||
| Catg D1 Exception Values: | 12,098,790 | 12,927,981 | ||||
| Total Test Values (4): | 63,600,080 | 63,176,929 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 3,158,846 |
Confidence Interval Values (5)
| State Lower Limit: | 60,018,083 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 63,600,080 | (Within Confidence Interval) |
| State Upper Limit: | 66,335,775 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 55,196,792 | (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