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2009 Confidence Interval Detail
107/Henderson
107-906/Malakoff ISD

Category Summary

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

Stratum
Variance
A 197,282,800 1.0103 195,271,504 63 2,046 .032311479
A 197,122,060 0.9209 214,053,708 35 877 .025508327
A 271,601,900 0.9299 292,076,460 48 704 .016697870
A 252,725,940 1.0578 238,916,563 18 306 .015418951
C 14,984,060 0.8751 17,122,683 17 3,436 .068102109
C 14,582,080 1.1495 12,685,585 9 322 .049975851
C 17,323,950 1.0160 17,051,132 8 160 .011326388
C 23,848,020 1.0124 23,555,927 7 84 .007601273
D3 56,414,370 0.9582 58,875,360 15 1,271 .014646621
Random Totals: 1,045,885,180   1,069,608,922 220 9,206  
Catg D1 Exception Values: 4,120,530   4,189,530      
Total Test Values (4): 1,050,005,710   1,073,798,452      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 53,689,923

Confidence Interval Values (5)

State Lower Limit: 1,020,108,529 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,050,005,710 (Within Confidence Interval)
State Upper Limit: 1,127,488,375 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 997,640,310 (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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