2009 Confidence Interval Detail
133/Kerr
130-902/Comfort ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 6,741,299 | 0.9384 | 7,183,822 | 9 | 94 | .026446252 |
| A | 6,193,695 | 0.9231 | 6,709,669 | 8 | 37 | .012365922 |
| A | 6,525,387 | 0.9272 | 7,037,734 | 5 | 21 | .017252314 |
| A | 8,989,846 | 1.0745 | 8,366,539 | 7 | 12 | .050441567 |
| D3 | 102,631,431 | 0.9472 | 108,352,440 | 22 | 1,992 | .177637742 |
| Random Totals: | 131,081,658 | 137,650,204 | 51 | 2,156 | ||
| Catg D1 Exception Values: | 4,652,909 | 5,076,023 | ||||
| Total Test Values (4): | 135,734,567 | 142,726,227 |
Margin of Error
| Margin of Error Percent: | 13.6738611 |
|---|---|
| Margin of Error Value: | 19,516,186 |
Confidence Interval Values (5)
| State Lower Limit: | 123,210,041 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 135,734,567 | (Within Confidence Interval) |
| State Upper Limit: | 162,242,413 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 130,686,367 | (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