taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
246/Williamson
246-904/Georgetown ISD

Category Summary

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

Stratum
Variance
A 834,226,843 0.9761 854,653,051 100 5,536 .020409866
A 1,219,353,362 0.9795 1,244,873,264 100 5,875 .007977099
A 1,323,589,476 0.9706 1,363,681,719 100 4,705 .008480477
A 1,578,782,811 0.9845 1,603,639,219 100 3,549 .007557719
F1 217,233,515 1.0914 199,041,154 12 467 .047658680
F1 244,119,439 0.9831 248,315,979 9 153 .050815460
F1 256,037,497 0.9533 268,580,192 9 48 .048521441
F1 231,822,535 1.0187 227,567,032 3 6 .009713047
Random Totals: 5,905,165,478   6,010,351,610 433 20,339  
Catg D1 Exception Values: 14,090,345   12,573,968      
Total Test Values (4): 5,919,255,823   6,022,925,578      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 301,146,278

Confidence Interval Values (5)

State Lower Limit: 5,721,779,300 (State Test Value minus Margin of Error Percent)
Local Test Value: 5,919,255,823 (Within Confidence Interval)
State Upper Limit: 6,324,071,856 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 6,458,974,488 (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