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2009 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 11,142,780 0.8611 12,940,170 9 221 .056403381
A 10,678,960 0.9677 11,035,404 9 139 .003877704
A 11,394,810 1.0370 10,988,245 7 100 .007438342
A 10,930,560 1.0140 10,779,645 6 63 .006957119
D3 45,682,250 0.9680 47,192,407 28 1,606 .045624110
Random Totals: 89,829,360   92,935,871 59 2,129  
Catg J Exception Values: 4,809,899   4,838,252      
Catg D1 Exception Values: 6,340,050   5,746,360      
Total Test Values (4): 100,979,309   103,520,483      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,176,024

Confidence Interval Values (5)

State Lower Limit: 98,344,459 (State Test Value minus Margin of Error Percent)
Local Test Value: 100,979,309 (Within Confidence Interval)
State Upper Limit: 108,696,507 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 146,322,702 (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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