taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 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 8,249,874 0.9120 9,045,914 15 145 .014968075
A 9,811,253 0.9359 10,483,228 15 106 .012426451
A 9,179,509 0.9604 9,558,006 15 71 .003333770
A 9,901,390 0.9675 10,233,995 15 44 .010336261
D2 5,082,538 1.2518 4,060,184 14 163 .210282131
E 22,167,114 1.0049 22,059,025 14 181 .062294474
F1 4,928,827 0.9028 5,459,489 13 37 .021292777
Random Totals: 69,320,505   70,899,841 101 747  
Catg D1 Exception Values: 1,886,664   1,676,920      
Total Test Values (4): 71,207,169   72,576,761      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,628,838

Confidence Interval Values (5)

State Lower Limit: 68,947,923 (State Test Value minus Margin of Error Percent)
Local Test Value: 71,207,169 (Within Confidence Interval)
State Upper Limit: 76,205,599 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 74,737,506 (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