taxes Property Tax Assistance

2017 Confidence Interval Detail

072/Erath
072-902/Dublin ISD

Category Summary

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

Stratum
Variance
A 20,018,850 1.0209 19,609,021 12 539 .037843730
A 21,920,090 0.9615 22,797,806 11 338 .021153774
A 22,364,280 0.9244 24,193,293 11 226 .042493378
A 25,102,050 0.9410 26,675,930 20 156 .038803280
E 130,634,400 0.9965 131,093,226 15 1,108 .032761790
F1 6,223,990 0.9415 6,610,717 13 85 .055572622
F1 5,206,630 0.8505 6,121,846 8 25 .032968308
F1 8,125,350 0.9006 9,022,152 6 19 .010372323
F1 6,993,390 0.9221 7,584,199 3 6 .002330272
Random Totals: 246,589,030   253,708,190 99 2,502  
Catg J Exception Values: 1,700,630   1,911,300      
Catg D1 Exception Values: 17,954,770   12,042,714      
Total Test Values (4): 266,244,430   267,662,204      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,383,110

Confidence Interval Values (5)

State Lower Limit: 254,279,094 (State Test Value minus Margin of Error Percent)
Local Test Value: 266,244,430 (Within Confidence Interval)
State Upper Limit: 281,045,314 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 305,328,379 (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