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2007 Confidence Interval Detail
250/Wood
250-905/Yantis ISD

Category Summary

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

Stratum
Variance
A 40,807,939 0.8912 45,789,878 18 534 .074170545
A 40,819,576 0.9535 42,810,253 19 215 .023517047
A 40,836,188 0.9357 43,642,394 15 139 .007818350
A 40,408,513 0.9930 40,693,367 16 82 .016338297
C 4,326,752 1.1314 3,824,246 13 873 .300729255
C 4,337,406 0.9010 4,813,991 7 176 .083498683
C 4,728,781 1.0005 4,726,418 9 92 .010346598
C 3,854,219 0.9525 4,046,424 6 35 .024277464
D3 34,098,691 0.9797 34,805,237 20 807 .181641584
G1 7,493,050 0.9257 8,094,469 9 17 .041411615
Random Totals: 221,711,115   233,246,677 132 2,970  
Catg D1 Exception Values: 3,720,952   2,300,011      
Catg G1 Exception Values: 13,613,768   12,664,652      
Total Test Values (4): 239,045,835   248,211,340      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,410,567

Confidence Interval Values (5)

State Lower Limit: 235,800,773 (State Test Value minus Margin of Error Percent)
Local Test Value: 239,045,835 (Within Confidence Interval)
State Upper Limit: 260,621,907 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 233,837,414 (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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