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2009 Confidence Interval Detail
250/Wood
250-902/Hawkins ISD

Category Summary

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

Stratum
Variance
A 29,447,520 1.0685 27,559,682 14 737 .099252321
A 30,842,650 0.9701 31,793,269 14 405 .065584337
A 30,261,380 0.9974 30,340,265 7 288 .002505954
A 42,610,201 0.9983 42,682,762 15 241 .006816110
D3 50,645,356 1.1019 45,961,844 19 2,339 .017535455
G1 54,226,220 1.0469 51,796,943 9 36 .000152073
Random Totals: 238,033,327   230,134,765 78 4,046  
Catg D1 Exception Values: 5,553,492   5,632,788      
Catg G1 Exception Values: 248,884,383   253,595,495      
Total Test Values (4): 492,471,202   489,363,048      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,468,152

Confidence Interval Values (5)

State Lower Limit: 464,894,896 (State Test Value minus Margin of Error Percent)
Local Test Value: 492,471,202 (Within Confidence Interval)
State Upper Limit: 513,831,200 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 679,831,728 (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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