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2008 Confidence Interval Detail
187/Polk
187-907/Livingston ISD

Category Summary

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

Stratum
Variance
A 178,196,549 0.6451 276,230,893 49 1,393 .125082606
A 383,539,909 0.8231 465,970,002 94 5,859 .050166076
C 12,394,810 0.7894 15,701,558 11 715 .186210639
C 54,780,691 0.8229 66,570,289 70 11,792 .688554848
D3 98,753,808 0.9102 108,496,823 36 4,170 .162737946
F1 39,198,293 0.9279 42,244,092 11 312 .033392209
F1 39,592,036 1.0457 37,861,754 7 90 .005015933
F1 51,394,047 0.7486 68,653,549 9 41 .216784834
F1 48,692,225 0.9739 49,997,151 3 11 .003937826
L1 16,379,125 1.0794 15,174,287 7 512 .025952209
L1 19,533,666 0.8464 23,078,528 7 98 .134716525
L1 16,980,221 0.9124 18,610,501 5 19 .047628439
L1 15,571,362 1.0412 14,955,207 2 3 .004733764
Random Totals: 975,006,742   1,203,544,634 311 25,015  
Catg D1 Exception Values: 29,919,924   29,954,125      
Total Test Values (4): 1,004,926,666   1,233,498,759      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 61,674,938

Confidence Interval Values (5)

Local Test Value: 1,004,926,666 (Outside Confidence Interval)
State Lower Limit: 1,171,823,821 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,295,173,697 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,237,603,668 (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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