taxes School and Appraisal Districts Property Value Study 2011 Report

School and Appraisal Districts Property Value Study 2011 Report

2011 Confidence Interval Detail
005/Archer
005-904/Windthorst ISD

Category Summary

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

Stratum
Variance
A 4,937,775 0.8408 5,872,711 11 86 .024794993
A 4,937,810 0.9563 5,163,453 10 52 .022392055
A 4,972,740 0.8788 5,658,557 12 35 .008612821
A 7,129,860 0.9402 7,583,344 10 28 .003286874
D3 18,379,290 0.6910 26,598,104 16 726 .234215814
G1 2,812,590 1.0266 2,739,714 7 26 .015645130
Random Totals: 43,170,065   53,615,883 66 953  
Catg D1 Exception Values: 4,822,060   4,480,440      
Catg G1 Exception Values: 905,360   894,967      
Total Test Values (4): 48,897,485   58,991,290      

Margin of Error

Margin of Error Percent: 10.8719287
Margin of Error Value: 6,413,491

Confidence Interval Values (5)

Local Test Value: 48,897,485 (Outside Confidence Interval)
State Lower Limit: 52,577,799 (State Test Value minus Margin of Error Percent)
State Upper Limit: 65,404,781 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 53,641,246 (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