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2006 Confidence Interval Detail
002/Andrews
002-901/Andrews ISD

Category Summary

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

Stratum
Variance
A 51,827,765 0.7388 70,151,279 9 1,673 .151644554
A 51,860,326 0.8327 62,279,724 17 928 .037604036
A 51,753,491 0.7975 64,894,660 13 543 .006990493
A 51,803,024 0.8195 63,212,964 8 295 .016544618
G1 654,460,559 1.0789 606,599,832 7 376 .011030178
G1 675,173,390 1.0126 666,772,062 6 46 .003459430
G1 674,860,208 0.9832 686,391,587 4 10 .000422103
Random Totals: 2,211,738,763   2,220,302,108 64 3,871  
Catg D1 Exception Values: 8,323,908   21,750,547      
Catg G1 Exception Values: 603,838,200   598,805,135      
Total Test Values (4): 2,823,900,871   2,840,857,790      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 142,042,890

Confidence Interval Values (5)

State Lower Limit: 2,698,814,900 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,823,900,871 (Within Confidence Interval)
State Upper Limit: 2,982,900,680 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,021,739,656 (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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