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2010 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 5,274,506 1.1592 4,550,126 10 106 .040212816
A 4,965,760 1.1450 4,336,908 8 53 .069685419
A 4,691,824 0.9760 4,807,197 10 34 .030428690
A 5,294,804 1.1097 4,771,383 10 27 .033560394
D3 26,053,043 1.0880 23,945,812 20 646 .184720899
G1 3,972,930 1.0209 3,891,596 21 47 .036528394
Random Totals: 50,252,867   46,303,022 79 913  
Catg J Exception Values: 336,980   395,330      
Catg D1 Exception Values: 1,572,746   1,399,153      
Total Test Values (4): 52,162,593   48,097,505      

Margin of Error

Margin of Error Percent: 9.6665867
Margin of Error Value: 4,649,387

Confidence Interval Values (5)

State Lower Limit: 43,448,118 (State Test Value minus Margin of Error Percent)
Local Test Value: 52,162,593 (Within Confidence Interval)
State Upper Limit: 52,746,892 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 50,732,173 (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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