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2009 Confidence Interval Detail
233/Val Verde
233-903/Comstock CISD

Category Summary

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

Stratum
Variance
A 3,312,410 0.9415 3,518,226 7 164 .000681263
A 3,745,680 0.9427 3,973,353 6 83 .000620441
A 3,774,977 0.9474 3,984,565 6 46 .001127723
A 5,163,810 0.9709 5,318,581 5 34 .000920981
D3 24,172,464 0.9516 25,401,917 9 4,290 .004328777
G1 23,509,445 1.0033 23,432,119 6 57 .106723101
G1 22,865,357 1.0142 22,545,215 5 18 .011783907
G1 24,149,033 0.9911 24,365,889 4 11 .006847854
G1 21,225,954 1.1659 18,205,639 3 5 .070480561
Random Totals: 131,919,130   130,745,504 51 4,708  
Catg J Exception Values: 19,936,759   20,953,658      
Catg D1 Exception Values: 17,182,962   21,024,323      
Total Test Values (4): 169,038,851   172,723,485      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,636,174

Confidence Interval Values (5)

State Lower Limit: 164,087,311 (State Test Value minus Margin of Error Percent)
Local Test Value: 169,038,851 (Within Confidence Interval)
State Upper Limit: 181,359,659 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 190,589,601 (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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