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2011 Confidence Interval Detail
072/Erath
072-908/Huckabay ISD

Category Summary

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

Stratum
Variance
A 1,871,920 0.9204 2,033,811 10 44 .011458094
A 1,678,970 1.0016 1,676,288 13 20 .013311296
A 1,887,390 1.0463 1,803,871 8 15 .005770381
A 1,652,570 1.0104 1,635,560 6 7 .001959029
D3 67,945,930 0.9728 69,845,734 20 1,883 .018227604
G1 1,625,800 1.0345 1,571,580 8 40 .009499640
G1 1,569,740 1.0334 1,519,005 6 15 .045352660
G1 1,634,130 0.9787 1,669,694 4 6 .037830137
G1 1,558,810 1.0229 1,523,912 2 3 .001620362
Random Totals: 81,425,260   83,279,455 77 2,033  
Catg J Exception Values: 390,920   381,736      
Catg D1 Exception Values: 9,040,060   8,616,129      
Total Test Values (4): 90,856,240   92,277,320      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,613,866

Confidence Interval Values (5)

State Lower Limit: 87,663,454 (State Test Value minus Margin of Error Percent)
Local Test Value: 90,856,240 (Within Confidence Interval)
State Upper Limit: 96,891,186 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 113,716,069 (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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