taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
237/Waller
237-905/Royal ISD

Category Summary

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

Stratum
Variance
A 41,237,650 0.9484 43,481,284 10 799 .010778343
A 37,644,016 0.9415 39,983,023 10 397 .007933888
A 42,294,745 1.0323 40,971,370 10 272 .003959110
A 42,313,800 1.0073 42,007,148 9 160 .007081136
D3 138,717,928 0.9965 139,205,146 15 3,313 .003316733
F1 14,886,590 0.9677 15,383,476 9 92 .027757266
F1 14,852,840 1.0208 14,550,196 8 35 .010081760
F1 14,059,310 1.0704 13,134,632 6 17 .017051648
F1 16,201,060 0.9739 16,635,240 6 9 .028847833
G1 11,241,725 1.0863 10,348,638 6 16 .034257224
G1 10,321,410 1.0503 9,827,107 4 7 .007116712
G1 12,939,134 1.0626 12,176,862 2 3 .000007789
L1 23,607,390 1.0345 22,820,097 9 123 .013624801
Random Totals: 420,317,598   420,524,219 104 5,243  
Catg J Exception Values: 5,994,780   6,284,571      
Catg D1 Exception Values: 13,922,091   13,173,851      
Catg F1 Exception Values: 31,749,600   33,368,273      
Catg G1 Exception Values: 6,270,660   6,588,088      
Catg L1 Exception Values: 44,110,940   45,223,986      
Total Test Values (4): 522,365,669   525,162,988      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,258,149

Confidence Interval Values (5)

State Lower Limit: 498,904,839 (State Test Value minus Margin of Error Percent)
Local Test Value: 522,365,669 (Within Confidence Interval)
State Upper Limit: 551,421,137 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 800,983,278 (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