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2006 Confidence Interval Detail
184/Parker
184-907/Aledo ISD

Category Summary

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

Stratum
Variance
A 250,397,807 0.9720 257,610,913 44 1,507 .005526199
A 250,384,135 0.9655 259,331,056 40 983 .018591692
A 250,389,035 0.9923 252,331,991 50 694 .004238814
A 250,140,269 0.9787 255,584,213 44 438 .018691086
D3 225,506,450 0.9391 240,130,391 26 2,844 .053818701
Random Totals: 1,226,817,696   1,264,988,564 204 6,466  
Catg D1 Exception Values: 5,447,380   3,523,400      
Total Test Values (4): 1,232,265,076   1,268,511,964      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 63,425,598

Confidence Interval Values (5)

State Lower Limit: 1,205,086,366 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,232,265,076 (Within Confidence Interval)
State Upper Limit: 1,331,937,562 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,547,221,765 (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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