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2008 Confidence Interval Detail
049/Cooke
049-903/Valley View ISD

Category Summary

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

Stratum
Variance
A 15,041,515 0.9849 15,272,124 12 268 .024896405
A 14,961,382 0.9527 15,704,190 8 161 .004378032
A 15,464,272 0.9656 16,015,195 12 111 .009398662
A 18,153,129 0.9726 18,664,537 8 63 .002258611
D3 84,082,761 0.8794 95,613,783 21 2,083 .076401636
Random Totals: 147,703,059   161,269,829 61 2,686  
Catg J Exception Values: 8,027,493   8,407,376      
Catg D1 Exception Values: 4,459,364   4,792,526      
Total Test Values (4): 160,189,916   174,469,731      

Margin of Error

Margin of Error Percent: 6.6620519
Margin of Error Value: 11,623,264

Confidence Interval Values (5)

Local Test Value: 160,189,916 (Outside Confidence Interval)
State Lower Limit: 162,846,467 (State Test Value minus Margin of Error Percent)
State Upper Limit: 186,092,995 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 172,874,470 (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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