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2009 Confidence Interval Detail
252/Young
252-903/Olney ISD

Category Summary

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

Stratum
Variance
A 10,370,920 0.9221 11,247,066 17 519 .006866669
A 10,311,580 0.9503 10,850,868 17 259 .012513102
A 11,397,590 0.9536 11,952,171 16 194 .022929317
A 11,823,240 0.9827 12,031,383 16 120 .023505196
D3 7,770,490 0.9050 8,586,177 20 1,003 .081437304
F1 1,961,780 0.9452 2,075,518 6 71 .056975888
F1 1,998,080 0.9140 2,186,083 5 25 .092888400
F1 1,536,820 0.9265 1,658,737 4 7 .017310258
F1 2,036,220 1.0264 1,983,846 2 4 .017150122
G1 4,348,420 1.0001 4,347,985 10 42 .008380714
G1 4,978,620 1.0512 4,736,130 5 8 .002608844
G1 3,494,310 1.0727 3,257,490 2 3 .000712526
Random Totals: 72,028,070   74,913,454 120 2,255  
Catg J Exception Values: 4,269,492   4,479,410      
Catg D1 Exception Values: 8,657,230   7,770,476      
Catg G1 Exception Values: 4,028,500   3,824,306      
Total Test Values (4): 88,983,292   90,987,646      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,549,382

Confidence Interval Values (5)

State Lower Limit: 86,438,264 (State Test Value minus Margin of Error Percent)
Local Test Value: 88,983,292 (Within Confidence Interval)
State Upper Limit: 95,537,028 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 122,441,667 (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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