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2009 Confidence Interval Detail
129/Kaufman
129-905/Mabank ISD

Category Summary

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

Stratum
Variance
A 31,850,295 1.0907 29,201,701 9 461 .045009311
A 31,214,420 0.9860 31,657,627 10 250 .008285387
A 32,924,130 1.0514 31,314,562 7 174 .021607247
A 33,694,828 1.0217 32,979,180 6 90 .001057691
C 7,953,710 1.1054 7,195,323 10 219 .040921758
C 7,081,880 1.0981 6,449,212 8 27 .020158657
D3 25,980,035 0.9221 28,174,856 10 1,069 .017088043
F1 5,646,160 1.0030 5,629,272 7 51 .026983553
F1 4,294,890 0.9785 4,389,259 5 18 .001505347
F1 6,222,670 1.0697 5,817,210 5 13 .042696932
Random Totals: 186,863,018   182,808,202 77 2,372  
Catg D1 Exception Values: 2,012,380   1,146,175      
Catg F1 Exception Values: 5,837,040   5,605,201      
Total Test Values (4): 194,712,438   189,559,578      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 9,477,979

Confidence Interval Values (5)

State Lower Limit: 180,081,599 (State Test Value minus Margin of Error Percent)
Local Test Value: 194,712,438 (Within Confidence Interval)
State Upper Limit: 199,037,557 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 239,701,599 (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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