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2008 Confidence Interval Detail
015/Bexar
015-907/San Antonio ISD

Category Summary

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

Stratum
Variance
A 1,298,673,323 0.9917 1,309,542,526 67 26,166 .048184846
A 1,425,440,047 0.9750 1,461,989,792 72 20,439 .027147458
A 1,578,885,539 0.9911 1,593,063,807 69 16,755 .025753103
A 1,656,748,388 0.9892 1,674,836,624 72 7,422 .010863134
B 185,249,435 1.0631 174,254,007 41 2,145 .045302572
B 208,921,531 0.9997 208,984,226 37 1,071 .018521486
B 194,730,383 0.9948 195,748,274 10 249 .001972775
B 213,965,521 1.0088 212,099,049 6 48 .006407594
F1 972,341,062 1.0568 920,080,490 38 3,434 .054880203
F1 1,022,010,956 1.0055 1,016,420,642 9 590 .013918435
F1 1,053,289,450 0.9211 1,143,512,594 8 123 .014876472
F1 1,398,803,083 1.0002 1,398,523,378 7 28 .001800295
L1 323,934,148 1.1079 292,385,728 7 2,145 .013157238
L1 332,565,863 1.0785 308,359,632 7 351 .063530586
L1 328,247,433 1.1554 284,098,523 7 107 .023943689
L1 357,834,444 1.0171 351,818,350 6 33 .012584534
Random Totals: 12,551,640,606   12,545,717,642 463 81,106  
Catg D1 Exception Values: 198,841   249,009      
Total Test Values (4): 12,551,839,447   12,545,966,651      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 627,298,333

Confidence Interval Values (5)

State Lower Limit: 11,918,668,318 (State Test Value minus Margin of Error Percent)
Local Test Value: 12,551,839,447 (Within Confidence Interval)
State Upper Limit: 13,173,264,984 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 11,937,217,827 (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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