taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
246/Williamson
166-905/Thorndale ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 4,031,073 1.0098 3,991,952 12 25 .001755094
E 7,504,664 0.9868 7,605,051 14 106 .009728789
Random Totals: 11,535,737   11,597,003 26 131  
Catg J Exception Values: 828,354   880,273      
Catg D1 Exception Values: 2,079,748   1,936,776      
Total Test Values (4): 14,443,839   14,414,052      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 720,702

Confidence Interval Values (5)

State Lower Limit: 13,693,350 (State Test Value minus Margin of Error Percent)
Local Test Value: 14,443,839 (Within Confidence Interval)
State Upper Limit: 15,134,754 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 14,451,055 (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