taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
043/Collin
043-902/Anna ISD

Category Summary

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

Stratum
Variance
A 108,121,797 0.9945 108,719,756 10 1,196 .001662889
A 61,241,247 1.0109 60,580,915 10 551 .003668092
A 85,721,704 0.9830 87,204,175 10 660 .000688118
A 92,725,506 1.0074 92,044,378 10 508 .009070118
D3 80,437,073 0.9392 85,644,243 15 1,626 .013660443
F1 13,247,061 0.9356 14,158,894 8 33 .012755371
F1 7,971,256 0.8535 9,339,492 6 6 .052215201
F1 4,265,719 0.9848 4,331,559 2 2 .000009407
Random Totals: 453,731,363   462,023,412 71 4,582  
Catg D1 Exception Values: 4,145,279   3,316,445      
Catg F1 Exception Values: 7,774,568   8,222,613      
Total Test Values (4): 465,651,210   473,562,470      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 23,678,124

Confidence Interval Values (5)

State Lower Limit: 449,884,346 (State Test Value minus Margin of Error Percent)
Local Test Value: 465,651,210 (Within Confidence Interval)
State Upper Limit: 497,240,594 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 508,434,680 (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