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2008 Confidence Interval Detail
094/Guadalupe
094-902/Schertz-Cibolo-Universal City ISD

Category Summary

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

Stratum
Variance
A 429,372,395 0.9913 433,140,719 47 3,839 .008728300
A 540,844,538 1.0101 535,436,628 48 3,446 .003250662
A 678,272,950 0.9968 680,450,391 50 3,626 .003455020
A 749,660,981 1.0052 745,782,910 49 3,013 .002352477
F1 51,257,701 1.0570 48,493,568 7 159 .011673049
F1 72,729,333 0.9695 75,017,363 7 78 .015538646
F1 70,291,133 1.1051 63,606,129 7 33 .022893498
F1 115,231,106 0.9924 116,113,569 5 16 .008739840
Random Totals: 2,707,660,137   2,698,041,277 220 14,210  
Catg D1 Exception Values: 1,624,339   1,720,351      
Total Test Values (4): 2,709,284,476   2,699,761,628      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 134,988,081

Confidence Interval Values (5)

State Lower Limit: 2,564,773,547 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,709,284,476 (Within Confidence Interval)
State Upper Limit: 2,834,749,709 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,931,336,661 (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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