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2008 Confidence Interval Detail
129/Kaufman
234-907/Wills Point ISD

Category Summary

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

Stratum
Variance
A 56,614,860 1.0926 51,816,639 10 741 .054649570
C 18,274,850 1.0302 17,739,128 13 489 .096979263
D3 46,102,413 1.0329 44,633,956 12 1,372 .012203081
Random Totals: 120,992,123   114,189,723 35 2,602  
Catg J Exception Values: 4,593,629   4,537,188      
Catg D1 Exception Values: 2,933,606   1,735,594      
Total Test Values (4): 128,519,358   120,462,511      

Margin of Error

Margin of Error Percent: 7.3180850
Margin of Error Value: 8,815,549

Confidence Interval Values (5)

State Lower Limit: 111,646,962 (State Test Value minus Margin of Error Percent)
Local Test Value: 128,519,358 (Within Confidence Interval)
State Upper Limit: 129,278,060 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 128,022,414 (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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