2009 Confidence Interval Detail
118/Irion
118-902/Irion County ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 9,427,290 | 0.7626 | 12,362,038 | 7 | 216 | .248345209 |
| A | 8,411,100 | 0.8550 | 9,837,544 | 7 | 102 | .048596092 |
| A | 8,437,090 | 0.9319 | 9,053,643 | 7 | 69 | .011054697 |
| A | 8,384,360 | 0.8609 | 9,739,064 | 6 | 46 | .019386439 |
| G1 | 109,449,828 | 0.9861 | 110,992,625 | 10 | 320 | .016170516 |
| G1 | 110,574,039 | 0.9965 | 110,962,407 | 6 | 77 | .035675032 |
| G1 | 108,136,208 | 1.0308 | 104,905,130 | 6 | 29 | .003521278 |
| G1 | 108,431,359 | 1.0547 | 102,807,774 | 4 | 10 | .012978564 |
| Random Totals: | 471,251,274 | 470,660,225 | 53 | 869 | ||
| Catg J Exception Values: | 4,153,816 | 3,686,781 | ||||
| Catg D1 Exception Values: | 15,100,710 | 21,584,931 | ||||
| Total Test Values (4): | 490,505,800 | 495,931,937 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 24,796,597 |
Confidence Interval Values (5)
| State Lower Limit: | 471,135,340 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 490,505,800 | (Within Confidence Interval) |
| State Upper Limit: | 520,728,534 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 586,341,569 | (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