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2010 Confidence Interval Detail
028/Caldwell
028-906/Prairie Lea ISD

Category Summary

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

Stratum
Variance
A 3,948,870 1.1521 3,427,541 9 94 .007409383
A 3,703,380 1.0362 3,574,001 9 52 .004293805
A 4,075,040 1.0753 3,789,677 8 39 .010461632
A 3,868,600 1.0133 3,817,823 7 22 .010012612
D3 20,700,796 1.0206 20,282,967 18 777 .003497917
G1 5,686,374 0.9798 5,803,607 6 17 .008858551
G1 5,914,500 0.9262 6,385,770 4 6 .039666748
G1 5,235,636 1.0401 5,033,781 2 3 .000010999
Random Totals: 53,133,196   52,115,167 63 1,010  
Catg J Exception Values: 668,836   940,943      
Catg D1 Exception Values: 1,423,720   1,341,456      
Catg G1 Exception Values: 3,964,590   3,739,640      
Total Test Values (4): 59,190,342   58,137,206      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,906,860

Confidence Interval Values (5)

State Lower Limit: 55,230,346 (State Test Value minus Margin of Error Percent)
Local Test Value: 59,190,342 (Within Confidence Interval)
State Upper Limit: 61,044,066 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 67,953,141 (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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