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2007 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 14,764,219 0.9669 15,269,644 10 275 .022134362
A 14,757,050 0.9451 15,614,274 9 161 .004036023
A 14,759,623 1.0123 14,580,285 10 106 .031279039
A 14,727,023 1.0982 13,410,147 9 71 .014777694
D3 64,320,640 0.9784 65,740,638 30 2,188 .017028416
Random Totals: 123,328,555   124,614,988 68 2,801  
Catg J Exception Values: 7,959,500   8,273,924      
Catg D1 Exception Values: 8,194,520   7,366,261      
Total Test Values (4): 139,482,575   140,255,173      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 7,012,759

Confidence Interval Values (5)

State Lower Limit: 133,242,414 (State Test Value minus Margin of Error Percent)
Local Test Value: 139,482,575 (Within Confidence Interval)
State Upper Limit: 147,267,932 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 168,437,674 (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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