taxes Property Tax Assistance

2017 Confidence Interval Detail

226/Tom Green
226-906/Wall ISD

Category Summary

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

Stratum
Variance
A 40,856,000 0.9137 44,714,895 14 236 .078484896
A 42,209,960 1.0183 41,451,399 14 158 .005957317
A 45,664,540 0.9953 45,880,177 13 134 .002366164
A 46,528,310 1.0018 46,444,710 13 89 .004139004
E 185,676,140 1.0048 184,789,152 19 999 .039643005
Random Totals: 360,934,950   363,280,333 73 1,616  
Catg D1 Exception Values: 43,629,760   33,026,322      
Total Test Values (4): 404,564,710   396,306,655      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 19,815,332

Confidence Interval Values (5)

State Lower Limit: 376,491,323 (State Test Value minus Margin of Error Percent)
Local Test Value: 404,564,710 (Within Confidence Interval)
State Upper Limit: 416,121,987 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 429,399,201 (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, D2, E, 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