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2007 Confidence Interval Detail
019/Bowie
019-905/New Boston ISD

Category Summary

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

Stratum
Variance
A 34,996,288 0.9541 36,679,895 9 827 .034568745
A 34,990,435 1.0300 33,971,296 14 483 .009127307
A 35,053,766 1.0500 33,384,539 8 334 .045269029
A 34,913,331 1.0377 33,644,918 8 207 .012129808
D3 49,278,860 1.0168 48,464,654 15 1,547 .017185944
F1 11,814,051 0.8803 13,420,483 8 96 .029692197
F1 11,486,236 0.9265 12,397,448 6 26 .016645399
F1 13,575,412 0.9318 14,569,019 4 12 .008339168
L1 4,395,076 1.0623 4,137,321 7 98 .060760785
L1 4,383,143 1.0783 4,064,864 5 24 .007339008
L1 4,591,489 1.0836 4,237,255 4 10 .013030668
Random Totals: 239,478,087   238,971,692 88 3,664  
Catg D1 Exception Values: 5,955,390   5,360,494      
Catg F1 Exception Values: 9,349,050   9,878,591      
Catg L1 Exception Values: 11,065,140   11,123,625      
Total Test Values (4): 265,847,667   265,334,402      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,266,720

Confidence Interval Values (5)

State Lower Limit: 252,067,682 (State Test Value minus Margin of Error Percent)
Local Test Value: 265,847,667 (Within Confidence Interval)
State Upper Limit: 278,601,122 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 278,001,813 (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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