taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
049/Cooke
049-906/Era ISD

Category Summary

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

Stratum
Variance
A 5,084,038 0.9924 5,122,973 9 114 .021909172
A 5,092,502 0.9499 5,361,093 9 57 .038575664
A 4,726,035 0.9711 4,866,682 8 36 .008443681
A 5,533,564 0.9799 5,647,070 8 25 .000869169
E 60,607,439 1.0455 57,969,813 16 690 .024066816
G1 24,178,570 0.9802 24,666,976 9 50 .010264756
G1 24,445,550 0.8473 28,851,115 7 24 .182309552
G1 24,680,910 1.0098 24,441,384 6 15 .013021679
G1 21,825,100 1.0004 21,816,373 4 7 .009336205
Random Totals: 176,173,708   178,743,479 76 1,018  
Catg J Exception Values: 970,310   928,151      
Catg D1 Exception Values: 9,245,314   7,576,672      
Total Test Values (4): 186,389,332   187,248,302      

Margin of Error

Margin of Error Percent: 5.0312638
Margin of Error Value: 9,420,956

Confidence Interval Values (5)

State Lower Limit: 177,827,346 (State Test Value minus Margin of Error Percent)
Local Test Value: 186,389,332 (Within Confidence Interval)
State Upper Limit: 196,669,258 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 209,596,001 (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