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2008 Confidence Interval Detail
049/Cooke
091-909/Whitesboro ISD

Category Summary

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

Stratum
Variance
A 18,911,916 1.0017 18,879,820 14 268 .014464334
D3 24,860,652 0.8484 29,302,984 12 617 .087502612
G1 4,417,851 0.8414 5,250,595 10 47 .463493075
Random Totals: 48,190,419   53,433,399 36 932  
Catg D1 Exception Values: 1,472,471   1,473,533      
Total Test Values (4): 49,662,890   54,906,932      

Margin of Error

Margin of Error Percent: 10.1214196
Margin of Error Value: 5,557,361

Confidence Interval Values (5)

State Lower Limit: 49,349,571 (State Test Value minus Margin of Error Percent)
Local Test Value: 49,662,890 (Within Confidence Interval)
State Upper Limit: 60,464,293 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 46,237,585 (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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