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 | 8,494,150 | 0.9486 | 8,954,406 | 10 | 134 | .009155842 |
| A | 8,454,421 | 0.9150 | 9,239,804 | 7 | 87 | .051410728 |
| A | 8,440,822 | 1.0215 | 8,263,164 | 7 | 65 | .014906771 |
| A | 8,322,742 | 0.9933 | 8,378,880 | 8 | 37 | .010982283 |
| D3 | 22,739,915 | 0.9429 | 24,116,995 | 21 | 726 | .102675397 |
| F1 | 4,416,983 | 0.8818 | 5,009,053 | 12 | 35 | .439608099 |
| Random Totals: | 60,869,033 | 63,962,302 | 65 | 1,084 | ||
| Catg D1 Exception Values: | 2,393,714 | 1,839,657 | ||||
| Total Test Values (4): | 63,262,747 | 65,801,959 |
Margin of Error
| Margin of Error Percent: | 6.2405604 |
|---|---|
| Margin of Error Value: | 4,106,411 |
Confidence Interval Values (5)
| State Lower Limit: | 61,695,548 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 63,262,747 | (Within Confidence Interval) |
| State Upper Limit: | 69,908,370 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 64,434,088 | (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