2009 Confidence Interval Detail
210/Shelby
210-905/Timpson ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,424,340 | 0.9133 | 8,129,136 | 7 | 283 | .026777221 |
| A | 7,808,050 | 0.9041 | 8,636,268 | 7 | 159 | .004052598 |
| A | 7,135,690 | 0.9348 | 7,633,387 | 7 | 93 | .011356837 |
| A | 7,994,280 | 0.8444 | 9,467,409 | 8 | 57 | .006161810 |
| D3 | 44,847,983 | 0.9091 | 49,332,288 | 25 | 3,044 | .065758029 |
| G1 | 15,355,710 | 1.1719 | 13,103,260 | 6 | 30 | .034788576 |
| G1 | 14,822,560 | 1.1885 | 12,471,653 | 5 | 15 | .029599977 |
| G1 | 15,701,999 | 1.0528 | 14,914,513 | 5 | 9 | .001063798 |
| Random Totals: | 121,090,612 | 123,687,914 | 70 | 3,690 | ||
| Catg J Exception Values: | 6,141,030 | 6,126,266 | ||||
| Catg D1 Exception Values: | 15,003,917 | 15,612,968 | ||||
| Catg G1 Exception Values: | 13,446,429 | 13,482,086 | ||||
| Total Test Values (4): | 155,681,988 | 158,909,234 |
Margin of Error
| Margin of Error Percent: | 5.0000002 |
|---|---|
| Margin of Error Value: | 7,945,462 |
Confidence Interval Values (5)
| State Lower Limit: | 150,963,772 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 155,681,988 | (Within Confidence Interval) |
| State Upper Limit: | 166,854,696 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 193,633,098 | (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