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2012 Confidence Interval Detail
019/Bowie
019-910/Malta ISD

Category Summary

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

Stratum
Variance
A 1,756,047 0.8561 2,051,217 8 49 .037728517
A 1,944,058 0.9536 2,038,651 7 24 .008094715
A 1,856,777 0.9637 1,926,717 6 16 .003400799
A 1,936,891 0.9848 1,966,786 5 13 .002414187
D3 12,410,231 0.9690 12,807,256 15 489 .012988873
Random Totals: 19,904,004   20,790,627 41 591  
Catg D1 Exception Values: 1,027,487   882,900      
Total Test Values (4): 20,931,491   21,673,527      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,083,676

Confidence Interval Values (5)

State Lower Limit: 20,589,851 (State Test Value minus Margin of Error Percent)
Local Test Value: 20,931,491 (Within Confidence Interval)
State Upper Limit: 22,757,203 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 18,300,990 (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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