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2008 Confidence Interval Detail
126/Johnson
126-904/Grandview ISD

Category Summary

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

Stratum
Variance
A 19,585,068 0.9769 20,048,181 11 351 .008568280
A 21,346,902 0.9683 22,045,752 7 245 .000920144
A 21,148,147 0.9569 22,100,687 12 163 .006509371
A 22,183,328 0.9724 22,812,966 8 115 .002454178
D3 82,955,901 0.9703 85,495,106 24 1,781 .002376550
G1 26,393,370 0.7713 34,219,331 7 32 .273023407
G1 26,883,934 1.0017 26,838,309 5 18 .000130276
G1 26,645,069 1.0323 25,811,362 4 12 .001600514
G1 25,274,128 1.0134 24,939,933 4 8 .002361346
Random Totals: 272,415,847   284,311,627 82 2,725  
Catg J Exception Values: 6,143,068   6,052,845      
Catg D1 Exception Values: 4,177,197   4,183,684      
Total Test Values (4): 282,736,112   294,548,156      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 14,727,408

Confidence Interval Values (5)

State Lower Limit: 279,820,748 (State Test Value minus Margin of Error Percent)
Local Test Value: 282,736,112 (Within Confidence Interval)
State Upper Limit: 309,275,564 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 348,304,614 (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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