Veteran's Day

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2008 Confidence Interval Detail
091/Grayson
091-905/Howe ISD

Category Summary

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

Stratum
Variance
A 28,891,697 0.9184 31,458,729 9 435 .018788596
A 30,379,065 1.0171 29,868,317 10 295 .010713012
A 29,937,822 0.9643 31,046,170 7 220 .006642702
A 28,552,278 1.0079 28,328,483 7 148 .001321802
D3 44,026,082 0.8950 49,191,153 10 1,328 .048229433
F1 2,924,932 0.8567 3,414,185 7 26 .054344954
F1 4,270,942 0.9417 4,535,353 7 12 .242448988
F1 2,739,879 0.8052 3,402,731 5 5 .039462904
Random Totals: 171,722,697   181,245,121 62 2,469  
Catg D1 Exception Values: 6,629,081   5,223,981      
Catg F1 Exception Values: 2,751,184   2,908,345      
Total Test Values (4): 181,102,962   189,377,447      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,468,872

Confidence Interval Values (5)

State Lower Limit: 179,908,575 (State Test Value minus Margin of Error Percent)
Local Test Value: 181,102,962 (Within Confidence Interval)
State Upper Limit: 198,846,319 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 185,724,246 (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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