2009 Confidence Interval Detail
072/Erath
018-906/Iredell ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| D3 | 5,458,170 | 0.9872 | 5,528,940 | 24 | 162 | .122952774 |
| Random Totals: | 5,458,170 | 5,528,940 | 24 | 162 | ||
| Catg D1 Exception Values: | 1,122,460 | 1,033,676 | ||||
| Total Test Values (4): | 6,580,630 | 6,562,616 |
Margin of Error
| Margin of Error Percent: | 11.4929168 |
|---|---|
| Margin of Error Value: | 754,236 |
Confidence Interval Values (5)
| State Lower Limit: | 5,808,380 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,580,630 | (Within Confidence Interval) |
| State Upper Limit: | 7,316,852 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 17,036,575 | (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