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2006 Confidence Interval Detail
036/Chambers
036-903/East Chambers ISD

Category Summary

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

Stratum
Variance
A 25,860,875 0.9431 27,421,138 19 581 .043224085
A 25,887,240 0.9500 27,249,726 17 330 .019298817
A 25,850,696 0.9472 27,291,698 15 235 .012398315
A 25,816,055 0.9774 26,412,989 17 153 .007834284
D3 30,128,800 0.8612 34,984,673 30 2,125 .281861773
F1 7,860,919 0.9374 8,385,875 8 90 .031608935
F1 8,183,168 0.9829 8,325,535 8 23 .027384784
F1 8,398,907 0.9775 8,592,232 5 8 .048279423
G1 23,251,470 1.0256 22,671,090 15 46 .057692835
Random Totals: 181,238,130   191,334,956 134 3,591  
Catg J Exception Values: 5,621,656   5,773,634      
Catg D1 Exception Values: 8,354,590   8,527,550      
Catg F1 Exception Values: 8,327,090   7,708,220      
Total Test Values (4): 203,541,466   213,344,360      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,667,218

Confidence Interval Values (5)

State Lower Limit: 202,677,142 (State Test Value minus Margin of Error Percent)
Local Test Value: 203,541,466 (Within Confidence Interval)
State Upper Limit: 224,011,578 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 216,594,247 (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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