taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
072/Erath
072-904/Bluff Dale ISD

Category Summary

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

Stratum
Variance
A 8,097,020 0.9894 8,183,768 7 90 .028959265
A 8,502,530 0.8697 9,776,394 7 48 .005282179
A 8,391,170 1.0835 7,744,504 6 37 .042737475
A 9,482,370 0.9611 9,866,164 7 32 .000737133
C1 3,388,750 0.8165 4,150,337 9 322 .087674120
C1 5,128,770 0.9136 5,613,803 7 300 .105994307
C1 1,368,950 0.7134 1,918,909 5 78 .157479014
C1 3,420,720 0.8411 4,066,960 8 168 .078097735
E 32,355,300 0.9499 34,061,796 8 246 .035176829
Random Totals: 80,135,580   85,382,635 64 1,321  
Catg J Exception Values: 3,790,050   4,372,967      
Catg D1 Exception Values: 4,403,530   3,096,678      
Total Test Values (4): 88,329,160   92,852,280      

Margin of Error

Margin of Error Percent: 5.4955516
Margin of Error Value: 5,102,745

Confidence Interval Values (5)

State Lower Limit: 87,749,535 (State Test Value minus Margin of Error Percent)
Local Test Value: 88,329,160 (Within Confidence Interval)
State Upper Limit: 97,955,025 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 113,847,665 (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