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2010 Confidence Interval Detail
246/Williamson
246-906/Hutto ISD

Category Summary

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

Stratum
Variance
A 243,734,249 0.9627 253,177,780 53 2,083 .004956242
A 243,818,070 0.9686 251,722,145 56 1,821 .002998949
A 225,254,711 0.9878 228,036,759 58 1,429 .003937812
A 228,567,380 0.9786 233,565,686 33 851 .005997214
D3 77,639,257 0.9877 78,606,112 16 1,335 .030840772
F1 38,481,856 0.9360 41,113,094 9 97 .010094690
F1 39,229,012 0.9805 40,009,191 8 35 .000228509
F1 32,733,951 0.9673 33,840,537 5 12 .001273168
L1 17,883,363 0.9537 18,751,560 11 123 .007664560
L1 16,227,988 0.9500 17,082,093 6 11 .014636255
L1 19,621,703 0.9276 21,153,194 2 3 .014021388
Random Totals: 1,183,191,540   1,217,058,151 257 7,800  
Catg J Exception Values: 24,938,687   24,253,042      
Catg D1 Exception Values: 11,265,587   9,636,662      
Catg F1 Exception Values: 26,768,862   25,955,000      
Total Test Values (4): 1,246,164,676   1,276,902,855      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 63,845,143

Confidence Interval Values (5)

State Lower Limit: 1,213,057,712 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,246,164,676 (Within Confidence Interval)
State Upper Limit: 1,340,747,998 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,378,919,252 (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

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