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2007 Confidence Interval Detail
109/Hill
109-911/Whitney ISD

Category Summary

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

Stratum
Variance
A 76,585,373 0.9265 82,660,953 49 1,663 .060184714
A 76,543,384 0.9831 77,859,205 43 771 .026948833
A 76,436,501 0.9641 79,282,752 32 430 .020496772
A 76,505,817 0.9698 78,888,242 17 239 .006471252
C 25,644,692 0.7785 32,941,159 40 3,308 .118891879
C 12,841,034 0.8615 14,905,437 52 1,066 .105200226
C 22,693,598 0.9295 24,414,845 16 1,048 .117611130
C 15,286,294 0.9251 16,523,937 15 277 .047841468
D3 51,522,643 1.0240 50,315,081 18 1,972 .021861253
F1 13,298,310 1.0639 12,499,586 7 142 .043206807
F1 13,341,937 1.0962 12,171,079 8 52 .089748589
F1 13,267,993 0.8973 14,786,574 7 26 .067278417
F1 12,858,779 0.9112 14,111,917 4 8 .035134010
Random Totals: 486,826,355   511,360,767 308 11,002  
Catg D1 Exception Values: 3,603,159   2,926,302      
Total Test Values (4): 490,429,514   514,287,069      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,714,353

Confidence Interval Values (5)

State Lower Limit: 488,572,716 (State Test Value minus Margin of Error Percent)
Local Test Value: 490,429,514 (Within Confidence Interval)
State Upper Limit: 540,001,422 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 479,156,869 (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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