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2009 Confidence Interval Detail
015/Bexar
015-911/East Central ISD

Category Summary

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

Stratum
Variance
A 288,408,591 1.0816 266,649,955 52 3,904 .056078614
A 285,271,416 1.0014 284,872,594 55 2,666 .025042603
A 278,183,075 1.0365 268,386,951 55 1,997 .013790868
A 251,571,439 1.0097 249,154,639 28 1,178 .014360064
D3 172,073,924 1.0567 162,840,848 16 5,537 .064894568
F1 60,836,450 0.8908 68,294,174 7 332 .031492609
F1 58,248,038 1.0263 56,755,372 7 102 .048696348
F1 66,413,454 0.9507 69,857,425 6 37 .030281244
F1 47,706,812 0.9513 50,149,072 4 8 .000336466
L1 47,417,737 1.0252 46,252,182 7 247 .014152833
L1 52,446,697 0.9642 54,394,002 7 50 .006346392
L1 29,690,818 1.1342 26,177,762 5 12 .015435825
L1 62,570,480 0.9066 69,016,634 3 10 .005792620
Random Totals: 1,700,838,931   1,672,801,610 252 16,080  
Catg D1 Exception Values: 7,532,685   8,439,309      
Total Test Values (4): 1,708,371,616   1,681,240,919      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 84,062,046

Confidence Interval Values (5)

State Lower Limit: 1,597,178,873 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,708,371,616 (Within Confidence Interval)
State Upper Limit: 1,765,302,965 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,818,652,677 (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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