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2011 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 347,321,284 0.9746 356,373,162 32 2,073 .006026185
A 355,986,060 0.9828 362,216,178 27 1,439 .003259666
A 365,916,850 0.9585 381,759,885 28 1,067 .009019014
A 327,476,810 0.9787 334,603,872 26 635 .002001825
D3 194,950,500 1.1692 166,738,368 15 2,496 .105652520
G1 93,569,118 1.0141 92,268,137 10 148 .001561590
G1 94,814,859 1.0292 92,124,814 9 72 .003132730
G1 94,203,507 0.9904 95,116,627 9 47 .009254176
G1 91,355,251 1.0229 89,310,051 8 30 .004230964
Random Totals: 1,965,594,239   1,970,511,094 164 8,007  
Catg J Exception Values: 18,308,830   20,192,488      
Catg D1 Exception Values: 5,145,270   2,921,417      
Total Test Values (4): 1,989,048,339   1,993,624,999      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 99,681,250

Confidence Interval Values (5)

State Lower Limit: 1,893,943,749 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,989,048,339 (Within Confidence Interval)
State Upper Limit: 2,093,306,249 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,306,228,304 (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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