taxes Property Tax Assistance

2016 Confidence Interval Detail

246/Williamson
246-905/Granger ISD

Category Summary

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

Stratum
Variance
A 12,102,474 1.0211 11,852,389 10 230 .115570179
A 13,013,643 1.1038 11,789,856 9 151 .109829245
A 15,768,473 0.9467 16,656,251 9 130 .014124419
A 16,880,307 0.8970 18,818,625 8 65 .053853747
E 52,225,903 0.8633 60,495,660 15 544 .123685151
F1 1,704,512 0.9971 1,709,469 7 23 .038878249
F1 2,077,942 0.9761 2,128,821 5 14 .020717198
F1 2,132,473 1.0301 2,070,161 4 7 .001965192
F1 2,110,478 0.9950 2,121,083 2 4 .008695080
Random Totals: 118,016,205   127,642,315 69 1,168  
Catg J Exception Values: 8,900,631   9,763,754      
Catg D1 Exception Values: 22,761,165   23,472,856      
Total Test Values (4): 149,678,001   160,878,925      

Margin of Error

Margin of Error Percent: 7.3566056
Margin of Error Value: 11,835,228

Confidence Interval Values (5)

State Lower Limit: 149,043,697 (State Test Value minus Margin of Error Percent)
Local Test Value: 149,678,001 (Within Confidence Interval)
State Upper Limit: 172,714,153 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 141,193,954 (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