2010 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 | 9,384,963 | 1.0331 | 9,084,274 | 10 | 145 | .018206943 |
| A | 10,211,582 | 0.9707 | 10,519,813 | 11 | 103 | .023239281 |
| A | 8,647,178 | 0.9846 | 8,782,427 | 11 | 64 | .003434236 |
| A | 8,718,168 | 0.9839 | 8,860,827 | 10 | 36 | .003697326 |
| D3 | 26,873,892 | 1.2759 | 21,062,695 | 20 | 715 | .681286908 |
| F1 | 4,340,569 | 0.7621 | 5,695,537 | 11 | 33 | .353662822 |
| Random Totals: | 68,176,352 | 64,005,573 | 73 | 1,096 | ||
| Catg J Exception Values: | 2,439,160 | 2,408,508 | ||||
| Catg D1 Exception Values: | 2,205,376 | 1,751,805 | ||||
| Total Test Values (4): | 72,820,888 | 68,165,886 |
Margin of Error
| Margin of Error Percent: | 11.6247781 |
|---|---|
| Margin of Error Value: | 7,924,133 |
Confidence Interval Values (5)
| State Lower Limit: | 60,241,753 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 72,820,888 | (Within Confidence Interval) |
| State Upper Limit: | 76,090,019 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 72,888,432 | (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