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2008 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 75,764,340 1.0004 75,734,046 42 1,648 .055010518
A 80,633,230 0.9589 84,089,300 40 821 .021055375
A 77,474,560 0.9711 79,780,208 25 449 .023890132
A 89,872,100 1.0272 87,492,309 25 281 .014960266
C 14,892,136 0.9070 16,419,114 17 2,269 .102938505
C 25,043,885 0.8094 30,941,296 16 2,336 .236710473
C 13,025,910 0.8680 15,006,809 24 732 .182197042
C 32,913,880 0.9397 35,025,944 16 1,029 .039843426
D3 53,166,512 1.0351 51,363,648 25 1,975 .120920765
F1 12,360,620 0.9154 13,502,971 9 137 .052193214
F1 14,352,970 1.0167 14,117,213 7 62 .003080143
F1 14,164,550 0.9511 14,892,808 6 29 .003234952
F1 12,846,960 0.9997 12,850,815 4 11 .001647284
Random Totals: 516,511,653   531,216,481 256 11,779  
Catg D1 Exception Values: 3,672,400   2,903,266      
Total Test Values (4): 520,184,053   534,119,747      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,705,987

Confidence Interval Values (5)

State Lower Limit: 507,413,760 (State Test Value minus Margin of Error Percent)
Local Test Value: 520,184,053 (Within Confidence Interval)
State Upper Limit: 560,825,734 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 512,862,184 (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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