2009 Confidence Interval Detail
090/Gray
090-902/Lefors ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,436,161 | 0.9132 | 1,572,669 | 8 | 119 | .016825752 |
| A | 1,413,999 | 0.9712 | 1,455,930 | 6 | 58 | .009426961 |
| A | 1,423,568 | 0.8019 | 1,775,244 | 7 | 38 | .194573405 |
| A | 1,422,087 | 0.8589 | 1,655,707 | 5 | 25 | .009046005 |
| G1 | 30,626,616 | 1.0963 | 27,936,346 | 10 | 76 | .030799221 |
| G1 | 31,530,079 | 1.0669 | 29,552,984 | 8 | 25 | .013324068 |
| G1 | 32,893,690 | 1.0252 | 32,085,144 | 6 | 11 | .008990403 |
| G1 | 26,880,158 | 1.0000 | 26,880,158 | 2 | 3 | .000820045 |
| Random Totals: | 127,626,358 | 122,914,182 | 52 | 355 | ||
| Catg J Exception Values: | 1,718,703 | 1,584,388 | ||||
| Catg D1 Exception Values: | 2,172,630 | 3,946,502 | ||||
| Total Test Values (4): | 131,517,691 | 128,445,072 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 6,422,254 |
Confidence Interval Values (5)
| State Lower Limit: | 122,022,818 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 131,517,691 | (Within Confidence Interval) |
| State Upper Limit: | 134,867,326 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 156,269,371 | (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