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2008 Confidence Interval Detail
018/Bosque
018-904/Valley Mills ISD

Category Summary

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

Stratum
Variance
A 14,552,620 0.9439 15,417,544 12 263 .031987144
A 12,060,130 1.0325 11,680,513 11 133 .009919769
A 10,317,890 1.0048 10,268,601 9 75 .002898800
A 6,076,500 1.0118 6,005,634 10 32 .007256481
D3 44,642,730 1.0058 44,385,295 22 1,600 .021137406
Random Totals: 87,649,870   87,757,587 64 2,103  
Catg J Exception Values: 4,986,418   5,011,793      
Catg D1 Exception Values: 6,366,150   5,922,917      
Total Test Values (4): 99,002,438   98,692,297      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 4,934,615

Confidence Interval Values (5)

State Lower Limit: 93,757,682 (State Test Value minus Margin of Error Percent)
Local Test Value: 99,002,438 (Within Confidence Interval)
State Upper Limit: 103,626,912 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 140,418,059 (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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