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2008 Confidence Interval Detail
158/Matagorda
158-902/Tidehaven ISD

Category Summary

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

Stratum
Variance
A 15,315,800 0.9633 15,899,304 15 442 .028486231
A 14,772,450 0.9433 15,660,394 13 238 .018956547
A 15,121,890 1.0506 14,393,575 12 149 .008239850
A 20,979,480 1.0635 19,726,827 12 125 .003795763
D3 44,282,957 1.0079 43,935,864 27 3,001 .036380102
G1 14,304,550 0.9777 14,630,817 11 19 .059887739
G1 13,193,210 1.0160 12,985,443 6 7 .007625450
G1 17,418,680 0.9872 17,644,530 3 4 .000123245
Random Totals: 155,389,017   154,876,754 99 3,985  
Catg J Exception Values: 41,268,351   41,996,240      
Catg D1 Exception Values: 26,678,011   28,297,720      
Catg G1 Exception Values: 57,497,840   56,291,465      
Total Test Values (4): 280,833,219   281,462,179      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,073,109

Confidence Interval Values (5)

State Lower Limit: 267,389,070 (State Test Value minus Margin of Error Percent)
Local Test Value: 280,833,219 (Within Confidence Interval)
State Upper Limit: 295,535,288 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 681,128,481 (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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