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2008 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 35,438,758 0.9002 39,367,649 15 391 .007614638
A 36,572,870 0.9729 37,591,602 15 227 .008711341
A 47,920,220 0.9609 49,870,143 14 207 .019493159
A 48,541,673 0.9823 49,416,342 14 132 .006091303
C 5,593,853 0.9351 5,982,091 7 284 .068490189
C 6,095,450 1.0158 6,000,640 7 93 .014588450
C 5,015,484 1.0080 4,975,679 12 49 .004277152
C 9,680,500 0.9708 9,971,673 19 59 .005055353
G1 1,710,990 0.9737 1,757,204 3 4 .001641816
Random Totals: 196,569,798   204,933,023 106 1,446  
Catg D1 Exception Values: 2,639,471   2,945,854      
Catg G1 Exception Values: 12,748,000   12,815,936      
Total Test Values (4): 211,957,269   220,694,813      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 11,034,741

Confidence Interval Values (5)

State Lower Limit: 209,660,072 (State Test Value minus Margin of Error Percent)
Local Test Value: 211,957,269 (Within Confidence Interval)
State Upper Limit: 231,729,554 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 233,854,913 (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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