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2011 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 36,228,609 0.8800 41,168,874 8 998 .080086120
A 37,441,951 0.9114 41,081,798 7 556 .034711674
A 36,895,010 0.8651 42,648,260 8 344 .022608646
A 36,833,860 0.9439 39,023,053 8 181 .008036371
D3 83,426,097 1.0419 80,071,117 16 3,815 .030951745
F1 18,990,733 0.7636 24,870,001 11 282 .196559955
F1 19,940,350 0.8520 23,404,167 9 112 .020927301
F1 23,563,930 0.7974 29,550,953 8 42 .015142747
F1 23,322,650 0.7005 33,294,290 4 9 .004105210
G1 23,579,039 1.0322 22,843,479 11 48 .020952762
G1 24,595,410 1.0292 23,897,600 7 24 .004603831
G1 22,914,282 1.0295 22,257,680 6 15 .007436097
G1 23,015,500 1.0163 22,646,364 5 10 .037027655
L1 9,014,120 1.0345 8,713,504 10 217 .036546138
L1 10,424,500 1.0762 9,686,397 8 45 .048750934
L1 7,871,410 1.0303 7,639,920 6 11 .002989361
L1 7,480,850 1.0758 6,953,755 2 2 .000675709
Random Totals: 445,538,301   479,751,212 134 6,711  
Catg J Exception Values: 8,500,609   7,006,241      
Catg D1 Exception Values: 19,139,961   16,866,116      
Total Test Values (4): 473,178,871   503,623,569      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,181,178

Confidence Interval Values (5)

Local Test Value: 473,178,871 (Outside Confidence Interval)
State Lower Limit: 478,442,391 (State Test Value minus Margin of Error Percent)
State Upper Limit: 528,804,747 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 583,280,819 (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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