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2009 Confidence Interval Detail
112/Hopkins
112-909/Saltillo ISD

Category Summary

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

Stratum
Variance
A 2,037,020 0.8606 2,366,977 6 68 .058597618
A 2,617,430 0.9274 2,822,331 8 46 .015075659
A 2,304,480 0.8900 2,589,303 7 27 .031840630
A 2,564,610 1.0159 2,524,471 7 20 .004886347
D3 28,319,540 0.9129 31,021,514 25 1,111 .094027369
Random Totals: 37,843,080   41,324,596 53 1,272  
Catg J Exception Values: 1,867,892   2,231,669      
Catg D1 Exception Values: 3,609,430   3,089,721      
Total Test Values (4): 43,320,402   46,645,986      

Margin of Error

Margin of Error Percent: 8.2049654
Margin of Error Value: 3,827,287

Confidence Interval Values (5)

State Lower Limit: 42,818,699 (State Test Value minus Margin of Error Percent)
Local Test Value: 43,320,402 (Within Confidence Interval)
State Upper Limit: 50,473,273 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 39,177,883 (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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