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2006 Confidence Interval Detail
070/Ellis
070-909/Milford ISD

Category Summary

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

Stratum
Variance
A 3,910,538 0.8654 4,518,764 18 109 .148643845
A 3,863,185 0.9409 4,105,840 15 66 .041889226
A 3,841,632 0.9650 3,980,966 18 48 .026401094
A 3,841,912 0.9604 4,000,325 18 28 .016303924
D3 11,009,220 0.8316 13,238,600 21 827 .092076694
Random Totals: 26,466,487   29,844,495 90 1,078  
Catg J Exception Values: 8,448,396   7,243,505      
Catg D1 Exception Values: 3,949,070   3,585,730      
Total Test Values (4): 38,863,953   40,673,730      

Margin of Error

Margin of Error Percent: 5.0000012
Margin of Error Value: 2,033,687

Confidence Interval Values (5)

State Lower Limit: 38,640,043 (State Test Value minus Margin of Error Percent)
Local Test Value: 38,863,953 (Within Confidence Interval)
State Upper Limit: 42,707,417 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 46,038,534 (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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