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2009 Confidence Interval Detail
096/Hall
096-904/Memphis ISD

Category Summary

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

Stratum
Variance
A 8,396,730 0.9750 8,612,031 11 483 .010297258
A 8,367,470 1.0110 8,276,429 11 248 .016775910
A 8,554,890 0.9941 8,605,663 10 171 .005070902
A 8,828,070 1.0641 8,296,279 10 98 .005664875
D3 9,893,000 1.1363 8,706,328 20 2,352 .046393197
F1 2,115,740 1.0556 2,004,301 7 88 .021798578
F1 2,135,070 0.9847 2,168,244 8 20 .024085997
F1 1,572,640 0.9645 1,630,524 6 6 .005228620
L1 2,685,000 0.9739 2,756,957 7 99 .010230880
L1 2,082,610 1.0015 2,079,491 5 20 .003839713
L1 1,304,120 1.0003 1,303,729 4 5 .009284791
Random Totals: 55,935,340   54,439,976 99 3,590  
Catg J Exception Values: 9,363,614   9,668,483      
Catg D1 Exception Values: 41,929,000   43,623,912      
Catg F1 Exception Values: 1,634,080   1,882,369      
Catg L1 Exception Values: 1,318,430   1,235,896      
Total Test Values (4): 110,180,464   110,850,636      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 5,542,532

Confidence Interval Values (5)

State Lower Limit: 105,308,104 (State Test Value minus Margin of Error Percent)
Local Test Value: 110,180,464 (Within Confidence Interval)
State Upper Limit: 116,393,168 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 114,990,317 (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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