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2008 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 3,627,869 0.9345 3,882,150 17 112 .013745201
A 3,159,140 0.9800 3,223,612 15 57 .006916292
A 5,731,890 0.9610 5,964,506 23 71 .012197540
A 3,307,660 0.9753 3,391,428 14 22 .009057709
D3 10,914,600 0.9630 11,333,956 54 644 .050284555
Random Totals: 26,741,159   27,795,652 123 906  
Catg J Exception Values: 4,511,010   4,886,421      
Catg D1 Exception Values: 3,357,141   2,596,832      
Total Test Values (4): 34,609,310   35,278,905      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,763,945

Confidence Interval Values (5)

State Lower Limit: 33,514,960 (State Test Value minus Margin of Error Percent)
Local Test Value: 34,609,310 (Within Confidence Interval)
State Upper Limit: 37,042,850 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 34,000,726 (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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