taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
072/Erath
072-910/Morgan Mill ISD

Category Summary

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

Stratum
Variance
A 2,440,950 0.8960 2,724,275 9 46 .031556449
A 2,419,320 0.9815 2,464,921 6 28 .013004761
A 2,771,570 0.9241 2,999,210 6 18 .032157729
A 4,094,830 0.9571 4,278,372 5 15 .002197184
E 56,264,690 0.9240 60,892,522 8 357 .023065934
G1 1,041,510 0.8866 1,174,724 8 39 .184403743
G1 1,134,300 0.9735 1,165,177 5 12 .093653127
G1 1,346,190 0.9528 1,412,878 3 4 .075659725
Random Totals: 71,513,360   77,112,079 50 519  
Catg J Exception Values: 79,380   95,913      
Catg D1 Exception Values: 5,303,200   3,915,761      
Catg G1 Exception Values: 583,550   672,405      
Total Test Values (4): 77,479,490   81,796,158      

Margin of Error

Margin of Error Percent: 8.0103176
Margin of Error Value: 6,552,132

Confidence Interval Values (5)

State Lower Limit: 75,244,026 (State Test Value minus Margin of Error Percent)
Local Test Value: 77,479,490 (Within Confidence Interval)
State Upper Limit: 88,348,290 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 82,330,715 (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