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2010 Confidence Interval Detail
238/Ward
238-904/Grandfalls-Royalty ISD

Category Summary

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

Stratum
Variance
A 702,990 0.8924 787,752 11 72 .123326258
A 697,490 0.8725 799,415 10 39 .052566824
A 675,480 1.0414 648,627 9 22 .028973600
A 744,330 0.9435 788,903 6 12 .030467355
G1 24,064,060 1.0425 23,083,031 15 81 .119193064
G1 23,312,590 1.0215 22,821,919 14 24 .005677724
G1 23,799,031 0.9961 23,892,211 9 12 .001592685
Random Totals: 73,995,971   72,821,858 74 262  
Catg J Exception Values: 6,594,364   7,156,710      
Catg D1 Exception Values: 373,670   815,195      
Catg G1 Exception Values: 22,375,240   21,868,018      
Total Test Values (4): 103,339,245   102,661,781      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,133,089

Confidence Interval Values (5)

State Lower Limit: 97,528,692 (State Test Value minus Margin of Error Percent)
Local Test Value: 103,339,245 (Within Confidence Interval)
State Upper Limit: 107,794,870 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 121,307,030 (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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