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2008 Confidence Interval Detail
094/Guadalupe
028-906/Prairie Lea ISD

Category Summary

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

Stratum
Variance
A 3,313,106 1.0055 3,294,984 10 22 .008399098
D3 2,500,463 1.0592 2,360,709 10 95 .008110598
G1 38,939,591 1.1101 35,077,552 10 23 .002308739
Random Totals: 44,753,160   40,733,245 30 140  
Catg D1 Exception Values: 193,095   206,012      
Total Test Values (4): 44,946,255   40,939,257      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 2,046,963

Confidence Interval Values (5)

State Lower Limit: 38,892,294 (State Test Value minus Margin of Error Percent)
State Upper Limit: 42,986,220 (State Test Value plus Margin of Error Percent)
Local Test Value: 44,946,255 (Outside Confidence Interval)
Value Assigned (6): 43,345,377 (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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