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2009 Confidence Interval Detail
072/Erath
072-909/Lingleville ISD

Category Summary

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

Stratum
Variance
A 1,250,850 0.9919 1,261,065 6 29 .036515040
A 1,518,060 0.9253 1,640,614 6 22 .015951297
A 1,371,370 1.0630 1,290,094 5 13 .002673797
A 1,391,180 0.9738 1,428,610 4 8 .009233193
D3 43,746,100 0.9678 45,201,591 22 1,257 .081707505
Random Totals: 49,277,560   50,821,974 43 1,329  
Catg J Exception Values: 4,201,450   4,386,559      
Catg D1 Exception Values: 7,266,470   6,508,390      
Total Test Values (4): 60,745,480   61,716,923      

Margin of Error

Margin of Error Percent: 8.9469480
Margin of Error Value: 5,521,781

Confidence Interval Values (5)

State Lower Limit: 56,195,142 (State Test Value minus Margin of Error Percent)
Local Test Value: 60,745,480 (Within Confidence Interval)
State Upper Limit: 67,238,704 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 89,729,560 (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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