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2007 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 248,706,281 0.9448 263,236,961 38 3,255 .020915863
A 248,442,611 0.9867 251,791,437 52 2,326 .010645833
A 248,525,388 0.9983 248,948,601 39 1,777 .012369654
A 248,398,266 0.9958 249,445,939 55 1,154 .014714433
D3 163,248,928 0.9744 167,537,898 21 5,435 .007781594
F1 51,380,523 0.8491 60,511,745 7 303 .042363954
F1 51,948,068 0.9316 55,762,203 9 108 .032069403
F1 51,611,754 0.9047 57,048,474 6 39 .011008156
F1 50,576,098 0.8931 56,629,826 6 11 .024932800
L1 42,591,148 1.0392 40,984,554 7 239 .035694756
L1 43,105,136 1.0356 41,623,345 6 40 .020164595
L1 46,683,797 1.0238 45,598,551 5 13 .002587178
L1 35,796,548 1.0100 35,442,127 3 4 .111034751
Random Totals: 1,531,014,546   1,574,561,661 254 14,704  
Catg D1 Exception Values: 7,194,087   9,872,979      
Total Test Values (4): 1,538,208,633   1,584,434,640      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 79,221,732

Confidence Interval Values (5)

State Lower Limit: 1,505,212,908 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,538,208,633 (Within Confidence Interval)
State Upper Limit: 1,663,656,372 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,623,894,030 (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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