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2011 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 10,584,310 0.9069 11,670,868 10 551 .006965354
A 10,596,647 0.9273 11,427,420 10 329 .041018280
A 11,218,433 0.8957 12,524,766 11 243 .048195984
A 10,660,893 0.8949 11,912,943 10 135 .072732878
D3 15,342,255 0.8106 18,927,036 22 3,924 .139867477
F1 2,453,710 0.9200 2,667,076 11 80 .022129877
F1 2,391,280 0.7630 3,134,050 10 35 .204990403
F1 2,853,253 0.7771 3,671,668 9 16 .076914260
F1 5,547,810 0.9112 6,088,466 3 7 .006806778
L1 1,446,483 1.0119 1,429,472 10 60 .002048504
L1 963,532 0.9087 1,060,341 5 9 .009928059
Random Totals: 74,058,606   84,514,106 111 5,389  
Catg J Exception Values: 2,779,550   2,821,317      
Catg D1 Exception Values: 2,593,960   3,566,208      
Catg L1 Exception Values: 2,581,591   2,572,837      
Total Test Values (4): 82,013,707   93,474,468      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,673,723

Confidence Interval Values (5)

Local Test Value: 82,013,707 (Outside Confidence Interval)
State Lower Limit: 88,800,745 (State Test Value minus Margin of Error Percent)
State Upper Limit: 98,148,191 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 98,440,526 (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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