taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
054/Crosby
054-903/Ralls ISD

Category Summary

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

Stratum
Variance
A 8,662,607 1.1073 7,823,180 10 324 .061237971
A 8,627,169 0.9555 9,028,958 11 170 .027758659
A 8,888,177 1.0130 8,774,114 9 110 .023614283
A 8,466,020 1.0017 8,451,652 8 56 .024777586
G1 5,644,196 1.0376 5,439,665 7 20 .009186392
Random Totals: 40,288,169   39,517,569 45 680  
Catg D1 Exception Values: 35,046,992   43,857,043      
Catg G1 Exception Values: 27,774,143   26,917,737      
Total Test Values (4): 103,109,304   110,292,349      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,514,617

Confidence Interval Values (5)

Local Test Value: 103,109,304 (Outside Confidence Interval)
State Lower Limit: 104,777,732 (State Test Value minus Margin of Error Percent)
State Upper Limit: 115,806,966 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 132,396,599 (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