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2008 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 20,628,520 0.8011 25,750,243 20 3,240 .383731535
G1 181,215,190 1.0086 179,670,028 17 246 .016185871
G1 181,543,183 0.9020 201,267,387 15 67 .032549228
G1 191,646,466 0.9716 197,248,318 14 15 .005577347
Random Totals: 575,033,359   603,935,976 66 3,568  
Catg D1 Exception Values: 13,507,380   54,230,761      
Catg G1 Exception Values: 375,211,228   351,481,978      
Total Test Values (4): 963,751,967   1,009,648,715      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,482,436

Confidence Interval Values (5)

State Lower Limit: 959,166,279 (State Test Value minus Margin of Error Percent)
Local Test Value: 963,751,967 (Within Confidence Interval)
State Upper Limit: 1,060,131,151 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,119,134,934 (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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