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 188,898,140 1.0048 187,995,760 19 987 .039643005
Random Totals: 364,156,950   366,486,941 73 1,604  
Catg D1 Exception Values: 43,657,180   33,045,746      
Total Test Values (4): 407,814,130   399,532,687      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 19,976,634

Confidence Interval Values (5)

State Lower Limit: 379,556,053 (State Test Value minus Margin of Error Percent)
Local Test Value: 407,814,130 (Within Confidence Interval)
State Upper Limit: 419,509,321 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 433,826,865 (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