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2011 Confidence Interval Detail
209/Shackelford
209-901/Albany ISD

Category Summary

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

Stratum
Variance
A 13,266,043 0.9929 13,360,905 11 334 .021686381
A 14,015,689 0.9593 14,610,329 11 190 .017532608
A 11,735,906 0.9812 11,960,768 11 109 .011034804
A 16,356,442 1.0342 15,815,550 11 90 .019155814
D3 33,725,748 0.9472 35,605,731 15 2,625 .116506698
F1 3,185,054 0.9605 3,316,037 10 90 .007662771
F1 3,261,167 0.9432 3,457,556 8 42 .013314567
F1 2,920,531 0.9859 2,962,299 7 19 .007449317
F1 2,404,816 0.9438 2,548,014 4 7 .024356394
G1 16,873,200 1.0072 16,752,581 9 129 .032503289
G1 16,509,880 1.0031 16,458,858 8 33 .010803048
G1 17,381,470 1.0464 16,610,732 6 13 .006248628
G1 15,773,710 0.9873 15,976,613 3 5 .004119790
Random Totals: 167,409,656   169,435,973 114 3,686  
Catg J Exception Values: 5,883,843   5,769,521      
Catg D1 Exception Values: 20,895,405   23,153,532      
Total Test Values (4): 194,188,904   198,359,026      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,917,951

Confidence Interval Values (5)

State Lower Limit: 188,441,075 (State Test Value minus Margin of Error Percent)
Local Test Value: 194,188,904 (Within Confidence Interval)
State Upper Limit: 208,276,977 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 281,776,534 (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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