taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
224/Throckmorton
224-902/Woodson ISD

Category Summary

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

Stratum
Variance
A 710,980 0.8766 811,065 8 48 .018923491
A 842,230 0.9819 857,755 8 33 .004975321
A 784,700 1.0187 770,295 7 21 .015585654
A 732,250 0.9316 786,013 7 13 .000376456
D3 4,691,790 0.8958 5,237,542 16 975 .190459352
G1 3,672,130 0.9590 3,829,124 8 40 .096256206
G1 3,865,170 0.9973 3,875,634 6 17 .014169164
G1 3,884,350 1.0577 3,672,450 4 8 .016016320
G1 3,212,020 1.0472 3,067,246 2 3 .000354756
Random Totals: 22,395,620   22,907,124 66 1,158  
Catg J Exception Values: 1,254,980   1,283,537      
Catg D1 Exception Values: 4,048,520   4,038,206      
Total Test Values (4): 27,699,120   28,228,867      

Margin of Error

Margin of Error Percent: 5.0863890
Margin of Error Value: 1,435,830

Confidence Interval Values (5)

State Lower Limit: 26,793,037 (State Test Value minus Margin of Error Percent)
Local Test Value: 27,699,120 (Within Confidence Interval)
State Upper Limit: 29,664,697 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 28,512,140 (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