taxes Property Tax Assistance

2017 Confidence Interval Detail

249/Wise
249-901/Alvord ISD

Category Summary

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

Stratum
Variance
A 15,262,940 0.9597 15,903,866 10 231 .019212216
A 14,321,417 1.0966 13,059,837 9 134 .013486154
A 18,311,410 0.9552 19,170,237 14 122 .010556781
A 21,898,260 0.9977 21,948,742 9 96 .022387635
E 126,082,373 0.9771 129,037,328 32 971 .316277558
G1 11,104,160 1.0167 10,921,766 9 92 .013926907
G1 10,909,370 1.0014 10,894,118 7 29 .001599901
G1 10,996,541 1.0164 10,819,108 6 17 .003106253
G1 10,725,470 1.0634 10,086,017 5 10 .016090583
Random Totals: 239,611,941   241,841,019 101 1,702  
Catg J Exception Values: 2,625,450   2,931,944      
Catg D1 Exception Values: 2,884,080   3,001,042      
Total Test Values (4): 245,121,471   247,774,005      

Margin of Error

Margin of Error Percent: 10.1829076
Margin of Error Value: 25,230,598

Confidence Interval Values (5)

State Lower Limit: 222,543,407 (State Test Value minus Margin of Error Percent)
Local Test Value: 245,121,471 (Within Confidence Interval)
State Upper Limit: 273,004,603 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 317,292,902 (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