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2008 Confidence Interval Detail
212/Smith
212-902/Bullard ISD

Category Summary

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

Stratum
Variance
A 93,439,300 1.0228 91,356,375 14 1,006 .018606636
A 114,658,900 0.9499 120,706,285 15 639 .011187693
A 115,363,200 0.9921 116,281,826 22 420 .002814553
A 117,118,200 0.9615 121,807,800 9 253 .006520498
C 5,590,300 1.1837 4,722,734 16 733 .229946139
C 6,190,650 0.8659 7,149,382 18 199 .101189091
C 4,311,100 0.7790 5,534,146 8 51 .107666414
C 3,796,700 0.9859 3,850,999 6 15 .000730242
D3 37,624,000 1.1024 34,129,173 18 1,094 .096849513
Random Totals: 498,092,350   505,538,720 126 4,410  
Catg D1 Exception Values: 2,088,246   1,384,305      
Total Test Values (4): 500,180,596   506,923,025      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,346,151

Confidence Interval Values (5)

State Lower Limit: 481,576,874 (State Test Value minus Margin of Error Percent)
Local Test Value: 500,180,596 (Within Confidence Interval)
State Upper Limit: 532,269,176 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 479,466,082 (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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