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2009 Confidence Interval Detail
225/Titus
172-902/Daingerfield-Lone Star ISD

Category Summary

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

Stratum
Variance
A 454,984 0.8838 514,804 7 17 .028729435
A 1,004,085 1.0845 925,851 7 21 .015313246
A 1,981,011 1.1048 1,793,095 7 22 .017125332
Random Totals: 3,440,080   3,233,750 21 60  
Catg J Exception Values: 280,526,163   285,451,353      
Catg D1 Exception Values: 423,118   334,674      
Total Test Values (4): 284,389,361   289,019,777      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 14,450,989

Confidence Interval Values (5)

State Lower Limit: 274,568,788 (State Test Value minus Margin of Error Percent)
Local Test Value: 284,389,361 (Within Confidence Interval)
State Upper Limit: 303,470,766 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 323,710,448 (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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