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2007 Confidence Interval Detail
087/Glasscock
087-901/Glasscock County ISD

Category Summary

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

Stratum
Variance
D3 19,069,010 1.0331 18,458,049 15 3,231 .030450205
G1 123,695,631 1.0048 123,104,728 15 224 .054657408
G1 126,107,619 0.9537 132,229,862 13 61 .004541310
G1 132,965,900 1.0598 125,463,201 7 13 .141687052
Random Totals: 401,838,160   399,255,840 50 3,529  
Catg J Exception Values: 13,169,919   12,667,110      
Catg D1 Exception Values: 13,635,090   47,418,020      
Catg G1 Exception Values: 258,567,035   257,144,088      
Total Test Values (4): 687,210,204   716,485,058      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 35,824,253

Confidence Interval Values (5)

State Lower Limit: 680,660,805 (State Test Value minus Margin of Error Percent)
Local Test Value: 687,210,204 (Within Confidence Interval)
State Upper Limit: 752,309,311 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 787,841,595 (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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