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2011 Confidence Interval Detail
245/Willacy
245-901/Lasara ISD

Category Summary

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

Stratum
Variance
A 2,476,487 0.9869 2,509,360 8 129 .001697209
A 2,572,720 0.9717 2,647,648 11 80 .003569999
A 2,619,871 1.0119 2,589,061 9 50 .003527743
A 2,608,437 0.9611 2,714,012 10 25 .009172322
D3 6,352,893 1.0051 6,320,658 16 652 .003716834
G1 3,275,106 0.9737 3,363,568 7 25 .011186382
Random Totals: 19,905,514   20,144,307 61 961  
Catg J Exception Values: 116,340   124,616      
Catg D1 Exception Values: 8,796,097   9,003,958      
Catg G1 Exception Values: 2,274,457   2,320,830      
Total Test Values (4): 31,092,408   31,593,711      

Margin of Error

Margin of Error Percent: 5.0000014
Margin of Error Value: 1,579,686

Confidence Interval Values (5)

State Lower Limit: 30,014,025 (State Test Value minus Margin of Error Percent)
Local Test Value: 31,092,408 (Within Confidence Interval)
State Upper Limit: 33,173,397 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 35,480,758 (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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