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2008 Confidence Interval Detail
129/Kaufman
129-902/Forney ISD

Category Summary

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

Stratum
Variance
A 347,619,947 0.9322 372,902,754 63 2,901 .019921973
A 387,649,490 0.9307 416,513,904 72 2,561 .007088627
A 340,421,000 0.9713 350,479,769 61 1,761 .008895953
A 358,196,890 0.9665 370,612,406 74 1,298 .007810538
D3 104,998,410 1.0421 100,756,559 12 1,465 .028679286
F1 47,754,560 0.9444 50,566,031 5 42 .005719496
F1 67,392,580 0.9536 70,671,749 3 19 .001520339
Random Totals: 1,654,032,877   1,732,503,172 290 10,047  
Catg D1 Exception Values: 4,468,880   3,082,776      
Catg F1 Exception Values: 34,305,960   37,465,605      
Total Test Values (4): 1,692,807,717   1,773,051,553      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 88,652,578

Confidence Interval Values (5)

State Lower Limit: 1,684,398,975 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,692,807,717 (Within Confidence Interval)
State Upper Limit: 1,861,704,131 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,341,579,983 (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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