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2009 Confidence Interval Detail
178/Nueces
178-908/Port Aransas ISD

Category Summary

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

Stratum
Variance
A 326,082,855 0.9865 330,545,215 53 1,888 .011893041
A 331,392,355 0.9568 346,354,886 34 1,198 .025350164
A 291,019,162 0.9798 297,018,945 23 730 .013998493
A 276,672,089 0.9426 293,520,145 14 377 .028186390
C 57,971,497 0.9500 61,022,628 13 495 .110558199
C 70,374,938 0.9636 73,033,352 9 333 .031399344
C 20,168,349 1.0016 20,136,131 8 55 .004774829
C 50,936,626 0.9656 52,751,270 8 52 .005594600
D3 122,546,294 0.9790 125,174,968 10 371 .009056476
F1 28,269,046 0.9721 29,080,389 10 108 .003481230
F1 31,148,719 1.0142 30,712,600 8 51 .005906703
F1 29,809,554 0.9242 32,254,441 6 25 .019953192
F1 31,012,875 1.0273 30,188,723 4 14 .044609349
Random Totals: 1,667,404,359   1,721,793,693 200 5,697  
Catg D1 Exception Values: 81,608   85,246      
Total Test Values (4): 1,667,485,967   1,721,878,939      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 86,093,947

Confidence Interval Values (5)

State Lower Limit: 1,635,784,992 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,667,485,967 (Within Confidence Interval)
State Upper Limit: 1,807,972,886 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,766,276,673 (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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