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2006 Confidence Interval Detail
246/Williamson
246-908/Liberty Hill ISD

Category Summary

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

Stratum
Variance
A 115,046,494 0.9244 124,455,316 42 998 .016426329
A 115,117,764 0.9042 127,314,492 30 541 .017555110
A 115,033,450 0.9367 122,807,142 30 387 .013416158
A 114,966,783 0.9573 120,094,832 17 237 .004454955
C 15,580,110 0.9165 16,999,574 9 486 .026219013
C 15,562,816 1.0125 15,370,682 27 264 .036477162
C 15,542,679 0.7979 19,479,482 18 124 .080432826
C 15,478,661 0.8996 17,206,159 6 68 .061914445
D3 93,193,116 1.0155 91,770,671 28 1,866 .042167097
F1 14,353,293 0.8845 16,227,578 6 71 .033622687
F1 14,372,403 1.0048 14,303,745 6 35 .002303601
F1 14,288,090 1.0111 14,131,233 5 17 .012759191
F1 13,978,648 0.8940 15,636,072 5 7 .029618271
Random Totals: 672,514,307   715,796,978 229 5,101  
Catg D1 Exception Values: 3,250,480   2,990,684      
Total Test Values (4): 675,764,787   718,787,662      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 35,939,383

Confidence Interval Values (5)

Local Test Value: 675,764,787 (Outside Confidence Interval)
State Lower Limit: 682,848,279 (State Test Value minus Margin of Error Percent)
State Upper Limit: 754,727,045 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 694,404,619 (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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