taxes Property Tax Assistance

2018 Confidence Interval Detail

039/Clay
039-902/Henrietta ISD

Category Summary

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

Stratum
Variance
A 37,086,600 0.8523 43,513,552 40 832 .070669996
A 39,228,210 0.9017 43,504,724 25 443 .039817886
A 40,189,930 0.8820 45,566,814 15 308 .020514720
A 44,054,130 0.9421 46,761,628 16 210 .037602468
E 48,374,660 0.8965 53,959,465 18 728 .040333541
F1 4,613,130 0.9041 5,102,455 9 69 .036185326
F1 4,516,010 0.9815 4,601,131 7 26 .007858280
F1 4,672,660 0.9647 4,843,641 5 11 .020855600
F1 7,504,610 1.0405 7,212,504 2 4 .000555095
Random Totals: 230,239,940   255,065,914 137 2,631  
Catg J Exception Values: 38,847,920   42,117,424      
Catg D1 Exception Values: 18,934,530   18,452,830      
Total Test Values (4): 288,022,390   315,636,168      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,781,808

Confidence Interval Values (5)

Local Test Value: 288,022,390 (Outside Confidence Interval)
State Lower Limit: 299,854,360 (State Test Value minus Margin of Error Percent)
State Upper Limit: 331,417,976 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 344,916,396 (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