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2009 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 15,872,591 0.5182 30,630,241 15 652 .294398438
A 16,418,320 0.5381 30,511,652 7 381 .372229250
A 15,954,560 0.5563 28,679,777 13 238 .070953540
A 16,941,643 0.6705 25,267,178 7 137 .024678887
G1 182,144,131 1.0123 179,930,980 3 4 .014020290
Random Totals: 247,331,245   295,019,828 45 1,412  
Catg D1 Exception Values: 14,936,582   24,146,815      
Catg G1 Exception Values: 1,953,532,681   1,916,556,814      
Total Test Values (4): 2,215,800,508   2,235,723,457      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 111,786,173

Confidence Interval Values (5)

State Lower Limit: 2,123,937,284 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,215,800,508 (Within Confidence Interval)
State Upper Limit: 2,347,509,630 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,658,233,782 (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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