taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
246/Williamson
246-912/Thrall ISD

Category Summary

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

Stratum
Variance
A 14,441,134 0.8642 16,710,407 14 240 .060394350
A 16,144,908 0.9797 16,479,441 13 153 .028006986
A 13,311,165 1.0077 13,209,452 12 83 .008260408
A 19,098,507 1.0061 18,982,712 11 69 .004403595
E 91,812,975 0.9883 92,899,904 17 926 .011226825
Random Totals: 154,808,689   158,281,916 67 1,471  
Catg J Exception Values: 8,364,238   8,745,249      
Catg D1 Exception Values: 27,440,360   24,294,012      
Total Test Values (4): 190,613,287   191,321,177      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,566,058

Confidence Interval Values (5)

State Lower Limit: 181,755,119 (State Test Value minus Margin of Error Percent)
Local Test Value: 190,613,287 (Within Confidence Interval)
State Upper Limit: 200,887,235 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 202,519,686 (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