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2009 Confidence Interval Detail
196/Refugio
196-901/Austwell-Tivoli ISD

Category Summary

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

Stratum
Variance
D3 10,226,280 0.9362 10,923,179 15 1,285 .045582379
G1 44,444,039 1.0410 42,693,601 5 22 .006085426
G1 87,292,200 0.5325 163,929,014 2 3 .088566006
Random Totals: 141,962,519   217,545,794 22 1,310  
Catg J Exception Values: 11,849,690   12,017,009      
Catg D1 Exception Values: 16,126,150   17,919,009      
Catg G1 Exception Values: 166,861,262   189,091,794      
Total Test Values (4): 336,799,621   436,573,606      

Margin of Error

Margin of Error Percent: 9.5594102
Margin of Error Value: 41,733,862

Confidence Interval Values (5)

Local Test Value: 336,799,621 (Outside Confidence Interval)
State Lower Limit: 394,839,744 (State Test Value minus Margin of Error Percent)
State Upper Limit: 478,307,468 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 500,829,888 (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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