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2009 Confidence Interval Detail
101/Harris
101-925/Huffman ISD

Category Summary

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

Stratum
Variance
A 161,790,627 1.0096 160,252,206 33 1,735 .020397859
A 162,770,133 1.0132 160,649,559 32 991 .020342763
A 170,464,977 0.9724 175,303,349 21 663 .005172508
A 154,932,751 1.0036 154,376,994 20 403 .034151865
C 15,149,774 1.0446 14,502,943 15 1,490 .026993712
C 15,233,940 0.9739 15,642,201 7 582 .010714333
C 14,159,345 0.8787 16,113,970 7 305 .013676889
C 18,086,707 0.8518 21,233,514 7 171 .046011985
Random Totals: 712,588,254   718,074,736 142 6,340  
Catg D1 Exception Values: 2,506,300   2,241,266      
Total Test Values (4): 715,094,554   720,316,002      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 36,015,800

Confidence Interval Values (5)

State Lower Limit: 684,300,202 (State Test Value minus Margin of Error Percent)
Local Test Value: 715,094,554 (Within Confidence Interval)
State Upper Limit: 756,331,802 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 766,405,183 (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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