2008 Confidence Interval Detail
091/Grayson
091-907/Tioga ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 8,589,274 | 1.0788 | 7,961,878 | 6 | 138 | .018504263 |
| A | 8,417,851 | 0.9273 | 9,077,808 | 9 | 88 | .008746249 |
| A | 9,330,600 | 0.9622 | 9,697,152 | 9 | 73 | .004201838 |
| A | 10,394,873 | 1.0381 | 10,013,364 | 8 | 45 | .001059040 |
| D3 | 24,473,963 | 0.9437 | 25,934,050 | 11 | 733 | .006316427 |
| F1 | 4,295,992 | 0.7019 | 6,120,519 | 11 | 33 | .303033161 |
| Random Totals: | 65,502,553 | 68,804,771 | 54 | 1,110 | ||
| Catg D1 Exception Values: | 2,369,812 | 1,877,680 | ||||
| Total Test Values (4): | 67,872,365 | 70,682,451 |
Margin of Error
| Margin of Error Percent: | 5.0000006 |
|---|---|
| Margin of Error Value: | 3,534,123 |
Confidence Interval Values (5)
| State Lower Limit: | 67,148,328 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 67,872,365 | (Within Confidence Interval) |
| State Upper Limit: | 74,216,574 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 69,615,381 | (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