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2012 Confidence Interval Detail
178/Nueces
178-905/Driscoll ISD

Category Summary

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

Stratum
Variance
A 5,281,639 0.9444 5,592,587 9 154 .008460654
A 4,521,819 0.9576 4,722,033 9 86 .018062615
A 4,620,847 0.9315 4,960,652 9 61 .005578684
A 4,641,023 0.9997 4,642,416 8 37 .008270315
G1 7,162,779 1.0233 6,999,686 17 60 .020944377
G1 7,476,610 0.9368 7,981,010 8 22 .059186943
G1 7,278,972 1.0051 7,242,038 5 11 .035198955
G1 6,557,231 0.9914 6,614,112 4 7 .005311246
Random Totals: 47,540,920   48,754,534 69 438  
Catg J Exception Values: 2,479,570   2,085,340      
Catg D1 Exception Values: 9,899,594   11,289,661      
Total Test Values (4): 59,920,084   62,129,535      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 3,106,477

Confidence Interval Values (5)

State Lower Limit: 59,023,058 (State Test Value minus Margin of Error Percent)
Local Test Value: 59,920,084 (Within Confidence Interval)
State Upper Limit: 65,236,012 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 129,119,798 (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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