taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
122/Jeff Davis
122-901/Fort Davis ISD

Category Summary

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

Stratum
Variance
A 21,994,080 1.0129 21,713,970 14 376 .010797523
A 22,787,870 0.9055 25,166,063 13 207 .020651576
A 24,196,670 0.9754 24,806,920 14 144 .008573147
A 22,485,650 0.9826 22,883,829 11 75 .012929632
C 4,001,090 1.0156 3,939,632 6 171 .010248021
C 4,099,160 0.9513 4,309,009 6 93 .009520810
C 3,851,650 0.9233 4,171,613 8 35 .010467185
D3 26,208,310 1.0264 25,534,207 15 2,504 .009434551
F1 4,113,650 0.8988 4,576,825 10 40 .004307816
F1 3,208,680 0.9504 3,376,136 6 15 .009154766
F1 2,496,110 0.9952 2,508,149 4 7 .017887770
Random Totals: 139,442,920   142,986,353 107 3,667  
Catg D1 Exception Values: 13,469,640   12,151,495      
Catg F1 Exception Values: 2,867,350   2,292,869      
Total Test Values (4): 155,779,910   157,430,717      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 7,871,536

Confidence Interval Values (5)

State Lower Limit: 149,559,181 (State Test Value minus Margin of Error Percent)
Local Test Value: 155,779,910 (Within Confidence Interval)
State Upper Limit: 165,302,253 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 170,931,002 (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