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2007 Confidence Interval Detail
095/Hale
095-902/Cotton Center ISD

Category Summary

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

Stratum
Variance
A 556,317 1.0247 542,907 5 21 .006593061
A 555,502 0.9861 563,332 4 12 .013867751
A 635,121 0.9953 638,120 5 7 .005551857
D3 6,486,191 0.9470 6,849,199 21 735 .004334534
Random Totals: 8,233,131   8,593,558 35 775  
Catg J Exception Values: 727,810   689,306      
Catg D1 Exception Values: 17,780,636   14,162,433      
Catg A Exception Values: 1,046,035   1,146,808      
Total Test Values (4): 27,787,612   24,592,105      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,229,605

Confidence Interval Values (5)

State Lower Limit: 23,362,500 (State Test Value minus Margin of Error Percent)
State Upper Limit: 25,821,710 (State Test Value plus Margin of Error Percent)
Local Test Value: 27,787,612 (Outside Confidence Interval)
Value Assigned (6): 28,865,849 (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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