taxes Property Tax Assistance

2018 Confidence Interval Detail

073/Falls
073-904/Westphalia ISD

Category Summary

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

Stratum
Variance
A 592,900 0.7973 743,635 9 15 .035726005
A 576,800 0.9739 592,258 7 9 .025497453
A 543,230 0.9766 556,246 6 7 .002723114
D2 1,773,560 1.0196 1,739,466 16 145 .009154653
E 12,410,510 0.9755 12,722,204 15 160 .016910806
Random Totals: 15,897,000   16,353,809 53 336  
Catg J Exception Values: 708,360   760,558      
Catg D1 Exception Values: 2,359,255   2,685,070      
Catg A Exception Values: 532,660   536,241      
Total Test Values (4): 19,497,275   20,335,678      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,016,783

Confidence Interval Values (5)

State Lower Limit: 19,318,895 (State Test Value minus Margin of Error Percent)
Local Test Value: 19,497,275 (Within Confidence Interval)
State Upper Limit: 21,352,461 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 18,595,310 (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