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2012 Confidence Interval Detail
189/Presidio
189-902/Presidio ISD

Category Summary

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

Stratum
Variance
A 10,730,270 0.7871 13,632,664 15 551 .072566322
A 10,833,280 0.8435 12,843,248 15 332 .056978452
A 11,029,640 0.7386 14,933,171 15 236 .059676908
A 11,147,220 0.8231 13,542,972 15 139 .038303052
D3 16,603,820 0.9494 17,488,751 26 4,062 .004173547
F1 2,582,150 0.7274 3,549,835 13 82 .022200421
F1 2,684,920 0.7019 3,825,217 11 35 .010718199
F1 3,016,690 0.6180 4,881,375 7 14 .257247606
F1 5,042,710 0.5705 8,839,106 4 6 .101223770
Random Totals: 73,670,700   93,536,339 121 5,457  
Catg D1 Exception Values: 2,524,470   3,505,962      
Total Test Values (4): 76,195,170   97,042,301      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,852,115

Confidence Interval Values (5)

Local Test Value: 76,195,170 (Outside Confidence Interval)
State Lower Limit: 92,190,186 (State Test Value minus Margin of Error Percent)
State Upper Limit: 101,894,416 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 168,494,848 (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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