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2008 Confidence Interval Detail
161/McLennan
161-916/West ISD

Category Summary

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

Stratum
Variance
A 36,173,854 0.8839 40,925,279 7 689 .042740048
A 35,997,623 0.9761 36,879,032 12 417 .017485319
A 42,123,171 0.9112 46,228,239 10 354 .010945388
A 48,845,544 0.9870 49,488,900 8 252 .011261200
D3 89,151,444 0.9580 93,059,962 25 3,016 .128896859
F1 6,626,020 0.8902 7,443,294 7 104 .013473406
F1 7,717,315 0.8970 8,603,473 6 40 .014754908
F1 7,180,751 0.9663 7,431,182 5 14 .004092760
F1 10,439,124 1.0525 9,918,408 2 6 .000731808
L1 3,847,229 0.9964 3,861,129 7 150 .000737754
L1 4,516,477 0.9908 4,558,414 6 46 .007684266
L1 4,750,086 0.9581 4,957,819 5 19 .003406796
L1 8,442,706 1.0075 8,379,857 3 11 .000163273
Random Totals: 305,811,344   321,734,988 103 5,118  
Catg D1 Exception Values: 9,531,455   8,410,073      
Total Test Values (4): 315,342,799   330,145,061      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,507,253

Confidence Interval Values (5)

State Lower Limit: 313,637,808 (State Test Value minus Margin of Error Percent)
Local Test Value: 315,342,799 (Within Confidence Interval)
State Upper Limit: 346,652,314 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 286,369,685 (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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