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2006 Confidence Interval Detail
229/Tyler
229-905/Spurger ISD

Category Summary

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

Stratum
Variance
A 4,746,921 0.9292 5,108,611 7 231 .018139626
A 4,696,831 1.0468 4,486,847 8 124 .053164828
A 4,739,148 0.8944 5,298,690 6 80 .010797454
A 4,695,087 0.9624 4,878,519 6 48 .001006064
D3 12,874,535 0.8941 14,399,435 10 1,114 .020928486
Random Totals: 31,752,522   34,172,102 37 1,597  
Catg J Exception Values: 2,363,832   3,329,080      
Catg D1 Exception Values: 10,395,210   13,582,642      
Total Test Values (4): 44,511,564   51,083,824      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,554,191

Confidence Interval Values (5)

Local Test Value: 44,511,564 (Outside Confidence Interval)
State Lower Limit: 48,529,633 (State Test Value minus Margin of Error Percent)
State Upper Limit: 53,638,015 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 42,368,688 (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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