taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 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 35,500,060 1.0432 34,029,965 31 759 .050109012
A 34,900,350 0.9920 35,181,804 13 410 .019009091
A 36,679,500 1.0019 36,609,941 10 306 .002316767
A 37,057,780 0.9847 37,633,574 12 196 .001905113
D3 39,606,980 1.0357 38,241,750 18 3,148 .017672110
F1 3,945,620 0.7091 5,564,265 9 72 .174249269
F1 4,464,740 0.8613 5,183,722 8 27 .107482988
F1 4,430,710 0.9029 4,907,199 5 11 .016238187
F1 3,498,100 0.9195 3,804,350 2 3 .000061645
G1 2,330,010 0.9093 2,562,422 5 11 .054781164
G1 2,121,630 1.0668 1,988,780 4 6 .031872763
G1 3,229,200 1.0216 3,160,924 3 5 .010012900
Random Totals: 207,764,680   208,868,696 120 4,954  
Catg J Exception Values: 43,598,170   44,438,321      
Catg D1 Exception Values: 18,998,910   19,845,540      
Catg G1 Exception Values: 26,422,530   25,491,976      
Total Test Values (4): 296,784,290   298,644,533      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 14,932,227

Confidence Interval Values (5)

State Lower Limit: 283,712,306 (State Test Value minus Margin of Error Percent)
Local Test Value: 296,784,290 (Within Confidence Interval)
State Upper Limit: 313,576,760 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 325,751,963 (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, D3, 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