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2011 Confidence Interval Detail
022/Brewster
022-902/Marathon ISD

Category Summary

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

Stratum
Variance
A 3,285,927 1.0120 3,246,963 10 116 .005265409
A 3,132,099 0.9013 3,475,090 10 63 .022719367
A 3,288,170 0.9220 3,566,345 10 42 .005348638
A 3,859,358 0.9828 3,926,901 10 27 .012892961
D3 10,140,679 1.0625 9,544,168 15 791 .062853515
F1 1,690,658 1.0100 1,673,919 10 26 .070407837
F1 1,386,568 0.2484 5,581,997 3 4 1.158434474
Random Totals: 26,783,459   31,015,383 68 1,069  
Catg J Exception Values: 19,102,159   19,382,453      
Catg D1 Exception Values: 15,897,330   20,500,906      
Total Test Values (4): 61,782,948   70,898,742      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,544,937

Confidence Interval Values (5)

Local Test Value: 61,782,948 (Outside Confidence Interval)
State Lower Limit: 67,353,805 (State Test Value minus Margin of Error Percent)
State Upper Limit: 74,443,679 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 62,128,463 (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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