taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
221/Taylor
221-912/Wylie ISD

Category Summary

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

Stratum
Variance
A 225,228,529 0.9995 225,341,200 49 1,919 .001202454
A 254,251,718 0.9865 257,731,088 47 1,491 .000826015
A 259,608,634 0.9916 261,807,820 52 1,161 .001194000
A 261,174,818 0.9805 266,369,014 47 709 .000968140
E 172,981,971 0.9832 175,937,725 37 1,317 .003899158
F1 23,218,961 0.9411 24,672,151 11 72 .008537620
F1 26,633,455 0.8655 30,772,334 7 24 .092797213
L1 15,262,486 1.0450 14,605,250 9 129 .001660928
L1 16,729,702 1.0113 16,542,769 8 29 .005291676
L1 28,425,515 1.0476 27,133,939 4 7 .001177473
Random Totals: 1,283,515,789   1,300,913,290 271 6,858  
Catg D1 Exception Values: 6,012,656   6,080,522      
Catg F1 Exception Values: 93,559,820   90,566,675      
Catg L1 Exception Values: 52,910,000   50,717,700      
Total Test Values (4): 1,435,998,265   1,448,278,187      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 72,413,909

Confidence Interval Values (5)

State Lower Limit: 1,375,864,278 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,435,998,265 (Within Confidence Interval)
State Upper Limit: 1,520,692,096 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,438,912,716 (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