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2009 Confidence Interval Detail
210/Shelby
210-904/Tenaha ISD

Category Summary

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

Stratum
Variance
A 4,267,560 0.9117 4,680,882 8 162 .025759888
A 3,848,180 0.9723 3,957,811 8 84 .011495367
A 4,227,720 1.0557 4,004,660 7 61 .026368002
A 4,177,970 0.9861 4,236,862 7 36 .001609974
D3 17,698,796 0.9568 18,497,906 20 1,217 .018863611
F1 1,032,860 1.0708 964,569 6 40 .019961349
F1 932,830 0.9004 1,036,017 5 14 .016836821
F1 1,064,880 0.9602 1,109,019 4 7 .013253559
F1 951,460 0.9435 1,008,437 2 4 .023427005
L1 546,090 0.9880 552,723 5 19 .001186804
L1 727,630 1.0164 715,889 3 8 .004314932
L1 2,707,750 0.9927 2,727,662 2 5 .000165460
Random Totals: 42,183,726   43,492,437 77 1,657  
Catg J Exception Values: 7,739,664   8,040,561      
Catg D1 Exception Values: 5,840,888   6,028,631      
Total Test Values (4): 55,764,278   57,561,629      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,878,081

Confidence Interval Values (5)

State Lower Limit: 54,683,548 (State Test Value minus Margin of Error Percent)
Local Test Value: 55,764,278 (Within Confidence Interval)
State Upper Limit: 60,439,710 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 80,156,395 (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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