2007 Confidence Interval Detail
039/Clay
039-903/Petrolia ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 9,694,683 | 0.9178 | 10,562,958 | 9 | 246 | .027204463 |
| A | 9,591,322 | 1.0213 | 9,391,288 | 10 | 129 | .015856838 |
| A | 9,682,781 | 1.0107 | 9,580,272 | 7 | 83 | .001618522 |
| A | 9,601,521 | 1.0360 | 9,267,877 | 14 | 52 | .003514798 |
| D3 | 20,567,110 | 1.0130 | 20,303,169 | 11 | 1,346 | .000686263 |
| Random Totals: | 59,137,417 | 59,105,564 | 51 | 1,856 | ||
| Catg J Exception Values: | 4,049,585 | 4,134,575 | ||||
| Catg D1 Exception Values: | 8,276,720 | 7,750,493 | ||||
| Total Test Values (4): | 71,463,722 | 70,990,632 |
Margin of Error
| Margin of Error Percent: | 5.0000006 |
|---|---|
| Margin of Error Value: | 3,549,532 |
Confidence Interval Values (5)
| State Lower Limit: | 67,441,100 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 71,463,722 | (Within Confidence Interval) |
| State Upper Limit: | 74,540,164 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 79,735,528 | (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