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2006 Confidence Interval Detail
158/Matagorda
158-904/Matagorda ISD

Category Summary

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

Stratum
Variance
A 34,325,918 1.0286 33,371,493 17 410 .009158328
A 34,369,358 0.9363 36,707,634 14 217 .023826589
A 34,402,109 0.9462 36,358,179 17 148 .009624476
A 34,136,588 0.9627 35,459,217 16 92 .003743152
C 4,858,209 1.0041 4,838,372 7 334 .147341705
C 4,891,929 1.0134 4,827,244 8 95 .008921763
C 4,906,074 0.9934 4,938,669 10 54 .019353707
C 4,754,562 0.9884 4,810,362 7 28 .000742184
D3 7,225,558 0.9392 7,693,311 13 947 .004237030
Random Totals: 163,870,305   169,004,481 109 2,325  
Catg D1 Exception Values: 2,609,196   2,770,482      
Total Test Values (4): 166,479,501   171,774,963      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,588,748

Confidence Interval Values (5)

State Lower Limit: 163,186,215 (State Test Value minus Margin of Error Percent)
Local Test Value: 166,479,501 (Within Confidence Interval)
State Upper Limit: 180,363,711 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 178,798,909 (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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