taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
069/Edwards
069-901/Rocksprings ISD

Category Summary

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

Stratum
Variance
A 3,957,971 0.8998 4,398,723 13 213 .062378692
A 3,918,880 0.8899 4,403,731 9 117 .066431852
A 3,863,678 0.9526 4,055,929 10 76 .019756495
A 3,871,995 0.9284 4,170,611 8 47 .006463395
D3 92,632,786 0.8161 113,506,661 19 6,586 .068537356
G1 11,057,940 0.9920 11,147,117 10 196 .213550619
G1 11,066,600 1.0490 10,549,666 9 66 .055738892
G1 11,157,670 0.9795 11,391,189 7 27 .063886268
G1 10,876,210 1.0156 10,709,147 4 8 .016461210
Random Totals: 152,403,730   174,332,774 89 7,336  
Catg J Exception Values: 284,440   330,095      
Catg D1 Exception Values: 36,127,303   43,059,072      
Total Test Values (4): 188,815,473   217,721,941      

Margin of Error

Margin of Error Percent: 6.5159675
Margin of Error Value: 14,186,691

Confidence Interval Values (5)

Local Test Value: 188,815,473 (Outside Confidence Interval)
State Lower Limit: 203,535,250 (State Test Value minus Margin of Error Percent)
State Upper Limit: 231,908,632 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 241,188,271 (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