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2008 Confidence Interval Detail
074/Fannin
074-917/Sam Rayburn ISD

Category Summary

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

Stratum
Variance
A 4,881,960 0.9260 5,272,095 9 158 .043804761
A 4,359,680 0.8789 4,960,382 7 85 .014679579
A 6,519,890 0.8960 7,276,663 7 92 .045014899
A 13,700,420 1.0000 13,700,420 6 105 .004998914
D3 61,926,960 1.2406 49,916,943 20 2,284 .026023336
Random Totals: 91,388,910   81,126,503 49 2,724  
Catg D1 Exception Values: 7,501,441   6,420,242      
Total Test Values (4): 98,890,351   87,546,745      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,377,337

Confidence Interval Values (5)

State Lower Limit: 83,169,408 (State Test Value minus Margin of Error Percent)
State Upper Limit: 91,924,082 (State Test Value plus Margin of Error Percent)
Local Test Value: 98,890,351 (Outside Confidence Interval)
Value Assigned (6): 81,818,237 (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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