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2008 Confidence Interval Detail
177/Nolan
177-901/Roscoe ISD

Category Summary

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

Stratum
Variance
A 3,771,574 0.7490 5,035,479 13 221 .098003302
A 3,824,468 0.8582 4,456,383 12 103 .022377819
A 3,906,277 0.8814 4,431,900 11 73 .029487424
A 4,036,980 0.9144 4,414,895 10 48 .019616370
D3 12,032,002 0.7666 15,695,280 24 651 .027725729
F1 1,096,721 1.0124 1,083,288 6 40 .011252666
F1 957,013 0.9502 1,007,170 4 11 .003340440
F1 1,146,543 0.9961 1,151,032 2 3 .003342465
L1 977,639 0.9474 1,031,918 5 24 .009913682
L1 730,124 1.0068 725,193 3 7 .000029537
L1 900,475 1.0159 886,382 2 5 .004972509
Random Totals: 33,379,816   39,918,920 92 1,186  
Catg J Exception Values: 8,009,761   8,376,166      
Catg D1 Exception Values: 7,078,112   9,125,447      
Catg F1 Exception Values: 859,238   1,076,440      
Catg L1 Exception Values: 6,748,492   6,906,473      
Total Test Values (4): 56,075,419   65,403,446      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,270,172

Confidence Interval Values (5)

Local Test Value: 56,075,419 (Outside Confidence Interval)
State Lower Limit: 62,133,274 (State Test Value minus Margin of Error Percent)
State Upper Limit: 68,673,618 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 143,698,708 (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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