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2009 Confidence Interval Detail
015/Bexar
015-915/Northside ISD

Category Summary

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

Stratum
Variance
A 5,177,707,362 0.9711 5,331,796,274 70 49,043 .015469187
A 4,829,452,840 0.9869 4,893,558,456 70 33,350 .005461697
A 4,872,220,123 0.9972 4,885,900,645 70 24,200 .007697795
A 5,046,847,166 0.9975 5,059,495,906 70 11,544 .009263582
B 604,563,934 1.0149 595,688,180 7 260 .002259458
B 540,951,665 0.9589 564,137,726 7 55 .003201045
B 615,029,503 0.9108 675,262,959 6 35 .006082313
B 692,376,074 0.9598 721,375,364 8 23 .010838634
C 233,413,098 1.0279 227,077,632 20 2,278 .017042093
C 238,239,925 1.0186 233,889,579 7 490 .023124742
C 236,586,193 1.0142 233,273,706 7 159 .009263793
C 228,408,035 1.0190 224,149,200 7 38 .012410552
D3 619,101,675 0.9488 652,510,197 10 2,334 .003794144
F1 1,526,756,567 1.0090 1,513,138,322 12 1,541 .012441845
F1 1,666,823,473 0.9705 1,717,489,411 7 411 .012790593
F1 1,565,387,489 0.9699 1,613,967,923 8 133 .024284753
F1 1,797,712,473 1.1583 1,552,026,654 6 31 .093758399
L1 525,183,342 1.1395 460,889,287 7 2,345 .032495354
L1 486,876,730 1.0172 478,644,052 7 329 .019803522
L1 470,439,293 1.0686 440,238,904 6 81 .003433273
L1 566,859,134 1.1203 505,988,694 5 16 .037466384
Random Totals: 32,540,936,094   32,580,499,071 417 128,696  
Catg D1 Exception Values: 4,264,975   4,702,260      
Total Test Values (4): 32,545,201,069   32,585,201,331      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,629,260,067

Confidence Interval Values (5)

State Lower Limit: 30,955,941,264 (State Test Value minus Margin of Error Percent)
Local Test Value: 32,545,201,069 (Within Confidence Interval)
State Upper Limit: 34,214,461,398 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 31,866,160,790 (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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