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2008 Confidence Interval Detail
166/Milam
166-904/Rockdale ISD

Category Summary

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

Stratum
Variance
A 37,865,700 0.8177 46,307,570 17 1,039 .144333155
A 38,283,995 0.9166 41,767,396 22 524 .064603527
A 39,035,700 1.0212 38,225,323 15 325 .031637743
A 38,893,465 1.1223 34,655,141 15 203 .016862451
D3 81,848,433 0.9388 87,184,100 20 3,723 .103112980
F1 9,595,260 0.8579 11,184,590 15 166 .018353729
F1 10,010,950 0.8379 11,947,667 15 48 .022155467
F1 11,926,363 0.8157 14,621,016 12 17 .018792905
Random Totals: 267,459,866   285,892,803 131 6,045  
Catg J Exception Values: 33,828,373   33,444,195      
Catg D1 Exception Values: 13,333,089   12,233,265      
Catg F1 Exception Values: 9,984,451   14,344,384      
Total Test Values (4): 324,605,779   345,914,647      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,295,732

Confidence Interval Values (5)

Local Test Value: 324,605,779 (Outside Confidence Interval)
State Lower Limit: 328,618,915 (State Test Value minus Margin of Error Percent)
State Upper Limit: 363,210,379 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 856,643,332 (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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