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2008 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 3,018,650 0.7991 3,777,562 7 165 .105104515
A 3,266,580 0.8931 3,657,575 6 82 .077044952
A 3,345,507 0.9332 3,584,984 8 46 .002053331
A 4,293,770 0.9718 4,418,368 7 32 .000160249
D3 23,636,232 0.9645 24,506,202 21 4,234 .002229847
G1 29,059,987 0.9533 30,483,570 9 69 .096316270
G1 29,067,001 0.9579 30,344,505 7 21 .013660019
G1 29,699,208 0.9983 29,749,783 6 12 .000003422
G1 27,582,359 1.0095 27,322,792 3 5 .000420742
Random Totals: 152,969,294   157,845,341 74 4,666  
Catg J Exception Values: 17,839,377   17,889,721      
Catg D1 Exception Values: 19,221,657   20,234,123      
Total Test Values (4): 190,030,328   195,969,185      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,798,459

Confidence Interval Values (5)

State Lower Limit: 186,170,726 (State Test Value minus Margin of Error Percent)
Local Test Value: 190,030,328 (Within Confidence Interval)
State Upper Limit: 205,767,644 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 213,320,991 (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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