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2008 Confidence Interval Detail
084/Galveston
084-908/Hitchcock ISD

Category Summary

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

Stratum
Variance
A 80,788,470 0.9770 82,690,348 15 1,378 .031957872
A 94,075,899 0.9982 94,245,541 18 744 .007629718
A 74,635,460 0.9552 78,135,951 10 237 .011350075
A 109,693,630 0.8880 123,528,863 9 175 .005519924
C 11,822,635 1.0763 10,984,516 7 821 .024567669
C 18,824,115 0.9238 20,376,829 7 183 .018664693
C 17,098,330 1.0507 16,273,275 9 108 .001338360
C 14,941,820 0.9680 15,435,764 6 54 .037591819
F1 45,012,210 0.9665 46,572,385 10 212 .009372018
Random Totals: 466,892,569   488,243,472 91 3,912  
Catg D1 Exception Values: 1,665,661   2,034,697      
Total Test Values (4): 468,558,230   490,278,169      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,513,908

Confidence Interval Values (5)

State Lower Limit: 465,764,261 (State Test Value minus Margin of Error Percent)
Local Test Value: 468,558,230 (Within Confidence Interval)
State Upper Limit: 514,792,077 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 529,884,187 (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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