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2006 Confidence Interval Detail
081/Freestone
081-905/Wortham ISD

Category Summary

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

Stratum
Variance
A 4,053,516 0.8915 4,546,849 8 178 .071041975
A 4,064,328 0.9413 4,317,782 9 103 .003519267
A 4,056,133 0.9563 4,241,486 8 73 .004266809
A 4,032,967 0.9475 4,256,430 9 40 .011433314
D3 16,649,760 0.9857 16,891,306 21 1,809 .001683814
G1 3,199,620 0.9563 3,345,833 8 37 .013070323
Random Totals: 36,056,324   37,599,686 63 2,240  
Catg J Exception Values: 13,348,618   12,937,125      
Catg D1 Exception Values: 5,257,130   4,295,425      
Catg G1 Exception Values: 4,152,090   4,008,992      
Total Test Values (4): 58,814,162   58,841,228      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,942,061

Confidence Interval Values (5)

State Lower Limit: 55,899,167 (State Test Value minus Margin of Error Percent)
Local Test Value: 58,814,162 (Within Confidence Interval)
State Upper Limit: 61,783,289 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 88,202,638 (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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