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2007 Confidence Interval Detail
110/Hockley
110-908/Whitharral ISD

Category Summary

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

Stratum
Variance
A 971,325 0.9111 1,066,101 7 40 .015812212
A 971,120 0.8354 1,162,461 5 18 .018056917
A 935,404 0.9453 989,531 5 12 .005176190
A 889,043 0.8714 1,020,247 6 7 .014850300
D3 4,429,493 0.8916 4,968,027 12 820 .040437606
G1 30,930,204 0.9595 32,235,752 19 41 .007244917
Random Totals: 39,126,589   41,442,119 54 938  
Catg J Exception Values: 417,820   326,387      
Catg D1 Exception Values: 14,902,793   14,726,425      
Catg G1 Exception Values: 10,093,210   9,260,895      
Total Test Values (4): 64,540,412   65,755,826      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,287,791

Confidence Interval Values (5)

State Lower Limit: 62,468,035 (State Test Value minus Margin of Error Percent)
Local Test Value: 64,540,412 (Within Confidence Interval)
State Upper Limit: 69,043,617 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 66,583,302 (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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