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2012 Confidence Interval Detail
210/Shelby
210-901/Center ISD

Category Summary

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

Stratum
Variance
A 37,663,828 1.0735 35,085,075 11 1,059 .041486511
A 31,811,556 0.8017 39,680,125 11 467 .056226538
A 34,541,510 0.8572 40,295,742 11 320 .041624033
A 36,612,980 1.0591 34,569,899 10 184 .029869499
D3 91,067,472 0.9730 93,594,524 21 3,841 .096217331
F1 20,704,416 0.7929 26,112,266 16 279 .153201196
F1 24,719,210 0.5845 42,291,206 15 119 .151268763
F1 22,206,780 0.7128 31,154,293 12 33 .222761385
F1 35,991,340 0.7756 46,404,513 5 13 .078035233
G1 23,970,210 0.9746 24,594,921 9 57 .041185396
G1 23,757,161 0.9864 24,084,713 7 26 .021279575
G1 23,840,961 0.9723 24,520,170 6 14 .029043270
G1 23,178,380 1.0106 22,935,266 4 6 .000562588
L1 9,480,188 1.0342 9,166,687 10 219 .023240082
L1 10,338,670 1.0240 10,096,357 8 50 .010728636
L1 8,082,380 1.0310 7,839,360 6 13 .006151889
L1 9,488,700 0.9772 9,710,090 2 4 .001351682
Random Totals: 467,455,742   522,135,207 164 6,704  
Catg J Exception Values: 16,318,260   17,362,449      
Catg D1 Exception Values: 19,459,697   17,751,890      
Total Test Values (4): 503,233,699   557,249,546      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 27,862,477

Confidence Interval Values (5)

Local Test Value: 503,233,699 (Outside Confidence Interval)
State Lower Limit: 529,387,069 (State Test Value minus Margin of Error Percent)
State Upper Limit: 585,112,023 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 613,169,334 (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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