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2008 Confidence Interval Detail
127/Jones
127-906/Stamford ISD

Category Summary

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

Stratum
Variance
A 7,063,982 0.9593 7,363,684 18 460 .265068597
A 11,032,236 0.8868 12,440,501 33 356 .107941362
A 8,640,829 1.0313 8,378,579 10 161 .027265759
A 19,211,811 1.1084 17,332,922 21 185 .064629612
D3 6,710,666 1.0456 6,418,005 26 826 .031349920
F1 1,459,915 0.8654 1,686,983 9 85 .043817500
F1 1,822,518 1.0580 1,722,607 10 34 .044911284
F1 1,678,480 1.0337 1,623,759 6 9 .024147852
L1 704,079 0.9416 747,747 7 41 .041006766
L1 1,416,261 0.9638 1,469,455 8 25 .050556848
L1 2,184,634 1.0746 2,032,974 4 9 .005528013
Random Totals: 61,925,411   61,217,216 152 2,191  
Catg J Exception Values: 6,881,894   6,527,354      
Catg D1 Exception Values: 8,090,151   7,582,874      
Catg F1 Exception Values: 1,182,810   1,171,857      
Total Test Values (4): 78,080,266   76,499,301      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,824,965

Confidence Interval Values (5)

State Lower Limit: 72,674,336 (State Test Value minus Margin of Error Percent)
Local Test Value: 78,080,266 (Within Confidence Interval)
State Upper Limit: 80,324,266 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 67,071,745 (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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