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2011 Confidence Interval Detail
251/Yoakum
251-901/Denver City ISD

Category Summary

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

Stratum
Variance
A 22,209,504 0.7487 29,664,090 14 582 .132576626
A 21,358,842 0.9173 23,284,467 11 347 .058541155
A 24,822,248 0.8929 27,799,583 13 283 .016161473
A 29,796,439 0.8731 34,127,178 13 196 .048553000
G1 302,232,244 1.0040 301,028,131 3 5 .000879245
Random Totals: 400,419,277   415,903,449 54 1,413  
Catg D1 Exception Values: 16,678,294   23,997,086      
Catg G1 Exception Values: 2,135,093,305   2,175,099,868      
Total Test Values (4): 2,552,190,876   2,615,000,403      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 130,750,020

Confidence Interval Values (5)

State Lower Limit: 2,484,250,383 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,552,190,876 (Within Confidence Interval)
State Upper Limit: 2,745,750,423 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,989,144,131 (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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