taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
043/Collin
043-917/Blue Ridge ISD

Category Summary

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

Stratum
Variance
A 8,800,857 0.9530 9,234,897 10 216 .036161738
A 9,956,636 0.9552 10,423,614 9 148 .007830170
A 8,945,222 1.0246 8,730,453 9 98 .012505345
A 9,957,605 0.9104 10,937,615 9 66 .024816185
D3 73,572,825 0.9394 78,318,954 15 2,331 .016491618
Random Totals: 111,233,145   117,645,533 52 2,859  
Catg J Exception Values: 7,128,597   8,045,929      
Catg D1 Exception Values: 4,363,674   3,329,887      
Total Test Values (4): 122,725,416   129,021,349      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,451,067

Confidence Interval Values (5)

State Lower Limit: 122,570,282 (State Test Value minus Margin of Error Percent)
Local Test Value: 122,725,416 (Within Confidence Interval)
State Upper Limit: 135,472,416 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 122,174,105 (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