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2010 Confidence Interval Detail
079/Fort Bend
079-906/Needville ISD

Category Summary

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

Stratum
Variance
A 99,746,570 0.9501 104,985,338 11 1,415 .042011752
A 100,673,590 0.9858 102,123,747 14 801 .007889851
A 102,424,910 0.9313 109,980,576 10 588 .033393661
A 101,168,115 0.9847 102,740,038 10 390 .001965542
D3 107,590,910 0.9572 112,401,703 20 4,408 .027876100
Random Totals: 511,604,095   532,231,402 65 7,602  
Catg J Exception Values: 26,638,160   19,679,668      
Catg D1 Exception Values: 22,647,410   24,246,229      
Total Test Values (4): 560,889,665   576,157,299      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 28,807,865

Confidence Interval Values (5)

State Lower Limit: 547,349,434 (State Test Value minus Margin of Error Percent)
Local Test Value: 560,889,665 (Within Confidence Interval)
State Upper Limit: 604,965,164 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 591,573,513 (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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