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2006 Confidence Interval Detail
234/Van Zandt
234-906/Van ISD

Category Summary

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

Stratum
Variance
A 52,108,486 1.0321 50,487,827 15 1,046 .076483407
A 52,074,650 0.9433 55,204,760 15 645 .014826880
A 52,074,422 0.9500 54,815,181 17 448 .064351069
A 51,833,011 0.9621 53,874,869 16 275 .020835614
D3 217,565,350 1.0366 209,883,610 64 6,853 .051809662
G1 14,771,351 1.0399 14,204,588 6 49 .025457773
G1 14,032,414 0.9755 14,384,843 5 15 .002318031
G1 18,619,080 0.9516 19,566,078 4 7 .013038012
Random Totals: 473,078,764   472,421,756 142 9,338  
Catg D1 Exception Values: 13,528,390   9,478,189      
Catg G1 Exception Values: 38,433,076   38,714,569      
Total Test Values (4): 525,040,230   520,614,514      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 26,030,726

Confidence Interval Values (5)

State Lower Limit: 494,583,788 (State Test Value minus Margin of Error Percent)
Local Test Value: 525,040,230 (Within Confidence Interval)
State Upper Limit: 546,645,240 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 495,603,917 (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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