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2008 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
D3 2,849,370 0.7115 4,004,736 10 1,136 .014934829
G1 28,556,050 0.9756 29,270,244 6 70 .010250430
G1 27,809,680 0.9215 30,178,709 5 24 .036315859
G1 28,900,867 1.0080 28,671,495 5 13 .000359123
G1 26,895,281 1.0330 26,036,090 4 7 .002083423
Random Totals: 115,011,248   118,161,274 30 1,250  
Catg J Exception Values: 6,475,147   6,763,600      
Catg D1 Exception Values: 371,690   806,485      
Catg G1 Exception Values: 35,135,465   35,170,267      
Total Test Values (4): 156,993,550   160,901,626      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,045,081

Confidence Interval Values (5)

State Lower Limit: 152,856,545 (State Test Value minus Margin of Error Percent)
Local Test Value: 156,993,550 (Within Confidence Interval)
State Upper Limit: 168,946,707 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 186,655,620 (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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