2007 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 | 8,489,030 | 0.9486 | 8,949,009 | 10 | 134 | .009155842 |
| A | 8,449,325 | 0.9150 | 9,234,235 | 7 | 87 | .051410728 |
| A | 8,435,735 | 1.0215 | 8,258,184 | 7 | 65 | .014906771 |
| A | 8,317,726 | 0.9933 | 8,373,831 | 8 | 37 | .010982283 |
| D3 | 22,739,913 | 0.9429 | 24,116,993 | 21 | 724 | .102675397 |
| F1 | 4,730,109 | 0.8818 | 5,364,152 | 12 | 35 | .439608099 |
| Random Totals: | 61,161,838 | 64,296,404 | 65 | 1,082 | ||
| Catg D1 Exception Values: | 2,413,099 | 1,854,979 | ||||
| Total Test Values (4): | 63,574,937 | 66,151,383 |
Margin of Error
| Margin of Error Percent: | 6.2712234 |
|---|---|
| Margin of Error Value: | 4,148,501 |
Confidence Interval Values (5)
| State Lower Limit: | 62,002,882 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 63,574,937 | (Within Confidence Interval) |
| State Upper Limit: | 70,299,884 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 64,843,250 | (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