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2011 Confidence Interval Detail
184/Parker
184-902/Springtown ISD

Category Summary

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

Stratum
Variance
A 111,158,000 1.0133 109,699,003 15 1,866 .010936072
A 110,087,510 0.9834 111,945,810 23 1,034 .006770607
A 106,910,800 0.9980 107,125,050 20 699 .003825043
A 105,637,370 1.0056 105,049,095 29 478 .004816263
D3 101,060,340 1.0305 98,069,229 15 2,907 .009737104
F1 10,591,690 1.0417 10,167,697 8 87 .028025299
F1 11,253,930 0.9483 11,867,479 10 46 .044398356
F1 13,122,260 0.9096 14,426,407 9 27 .013603672
F1 9,375,470 1.0392 9,021,815 5 5 .010359353
G1 8,461,550 1.0003 8,459,012 9 48 .118269495
G1 8,339,972 0.9529 8,752,201 8 15 .015363183
G1 8,147,370 1.0399 7,834,763 5 9 .008058147
G1 7,675,690 1.0155 7,558,533 3 5 .001658982
Random Totals: 611,821,952   609,976,094 159 7,226  
Catg J Exception Values: 8,661,992   9,275,177      
Catg D1 Exception Values: 3,060,650   2,235,911      
Total Test Values (4): 623,544,594   621,487,182      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 31,074,359

Confidence Interval Values (5)

State Lower Limit: 590,412,823 (State Test Value minus Margin of Error Percent)
Local Test Value: 623,544,594 (Within Confidence Interval)
State Upper Limit: 652,561,541 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 705,618,734 (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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