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2009 Confidence Interval Detail
140/Lamb
140-908/Sudan ISD

Category Summary

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

Stratum
Variance
D3 3,839,305 0.9910 3,874,173 13 805 .004564029
Random Totals: 3,839,305   3,874,173 13 805  
Catg J Exception Values: 203,707,910   168,521,601      
Catg D1 Exception Values: 25,824,186   21,180,312      
Total Test Values (4): 233,371,401   193,576,086      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,678,804

Confidence Interval Values (5)

State Lower Limit: 183,897,282 (State Test Value minus Margin of Error Percent)
State Upper Limit: 203,254,890 (State Test Value plus Margin of Error Percent)
Local Test Value: 233,371,401 (Outside Confidence Interval)
Value Assigned (6): 296,274,644 (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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