taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
237/Waller
237-904/Waller ISD

Category Summary

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

Stratum
Variance
A 100,679,863 0.9583 105,060,903 10 1,558 .008066039
A 105,006,631 0.9726 107,964,868 10 947 .005708041
A 106,072,318 0.9730 109,015,743 10 666 .009804277
A 115,239,966 0.9843 117,078,092 11 445 .006095030
C 13,156,330 0.9319 14,117,749 11 1,888 .017832849
C 13,374,625 1.0349 12,923,592 10 697 .010091175
C 13,330,210 1.0075 13,230,978 10 379 .010990844
C 11,658,530 0.9893 11,784,625 9 166 .010227682
D3 382,812,155 1.0032 381,591,064 16 5,561 .002060112
F1 13,922,030 1.0433 13,344,225 10 150 .011509676
F1 15,498,780 1.0356 14,965,991 8 54 .010695429
F1 31,769,470 0.9987 31,810,824 8 27 .015186262
Random Totals: 922,520,908   932,888,654 123 12,538  
Catg D1 Exception Values: 16,033,555   15,997,588      
Total Test Values (4): 938,554,463   948,886,242      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 47,444,312

Confidence Interval Values (5)

State Lower Limit: 901,441,930 (State Test Value minus Margin of Error Percent)
Local Test Value: 938,554,463 (Within Confidence Interval)
State Upper Limit: 996,330,554 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,065,068,121 (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