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2011 Confidence Interval Detail
187/Polk
187-903/Goodrich ISD

Category Summary

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

Stratum
Variance
A 11,325,364 1.0624 10,660,169 11 328 .076312025
A 11,252,578 1.0093 11,148,893 10 177 .105598642
A 11,592,988 1.0693 10,841,661 11 125 .008157983
A 11,665,861 0.9498 12,282,439 10 73 .002938053
D3 9,688,497 0.9190 10,542,434 14 420 .011726585
G1 18,446,330 0.9933 18,570,754 10 26 .012254045
Random Totals: 73,971,618   74,046,350 66 1,149  
Catg J Exception Values: 2,362,303   2,366,286      
Catg D1 Exception Values: 3,513,996   3,092,677      
Total Test Values (4): 79,847,917   79,505,313      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 3,975,266

Confidence Interval Values (5)

State Lower Limit: 75,530,047 (State Test Value minus Margin of Error Percent)
Local Test Value: 79,847,917 (Within Confidence Interval)
State Upper Limit: 83,480,579 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 113,023,173 (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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