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2007 Confidence Interval Detail
209/Shackleford
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 10,888,761 0.9499 11,463,060 7 390 .008718312
A 10,893,911 0.9515 11,449,197 8 195 .005177826
A 10,970,656 0.9719 11,287,844 9 121 .006036405
A 10,789,835 0.9534 11,317,217 9 60 .011801156
D3 18,887,952 0.9791 19,291,137 14 2,515 .003046979
G1 16,639,930 1.0237 16,254,694 7 140 .027317981
G1 16,853,530 0.9698 17,378,356 6 46 .012428724
G1 17,365,010 1.0485 16,561,764 5 18 .020355983
G1 15,664,190 1.0016 15,639,167 4 7 .005870578
Random Totals: 128,953,775   130,642,436 69 3,492  
Catg J Exception Values: 6,989,500   6,990,039      
Catg D1 Exception Values: 16,498,241   17,578,626      
Total Test Values (4): 152,441,516   155,211,101      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,760,555

Confidence Interval Values (5)

State Lower Limit: 147,450,546 (State Test Value minus Margin of Error Percent)
Local Test Value: 152,441,516 (Within Confidence Interval)
State Upper Limit: 162,971,656 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 221,443,131 (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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