2009 Confidence Interval Detail
188/Potter
188-902/River Road ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 46,520,111 | 0.9553 | 48,696,861 | 17 | 615 | .077209792 |
| A | 48,419,267 | 1.0229 | 47,335,289 | 14 | 442 | .043862973 |
| A | 52,745,055 | 1.0327 | 51,074,906 | 18 | 398 | .028713686 |
| A | 53,548,667 | 1.0314 | 51,918,428 | 11 | 300 | .033949066 |
| G1 | 14,281,450 | 1.0128 | 14,100,958 | 6 | 42 | .000240711 |
| Random Totals: | 215,514,550 | 213,126,442 | 66 | 1,797 | ||
| Catg J Exception Values: | 9,242,009 | 8,988,186 | ||||
| Catg D1 Exception Values: | 2,886,597 | 3,460,619 | ||||
| Catg G1 Exception Values: | 10,949,891 | 10,359,264 | ||||
| Total Test Values (4): | 238,593,047 | 235,934,511 |
Margin of Error
| Margin of Error Percent: | 5.0000002 |
|---|---|
| Margin of Error Value: | 11,796,726 |
Confidence Interval Values (5)
| State Lower Limit: | 224,137,785 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 238,593,047 | (Within Confidence Interval) |
| State Upper Limit: | 247,731,237 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 237,550,730 | (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