taxes Property Tax Assistance

2018 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 1,366,830 0.8233 1,660,185 9 59 .046383202
A 1,472,410 0.8312 1,771,427 8 35 .024408726
A 1,139,830 0.9193 1,239,889 7 17 .068911875
A 2,130,560 0.7954 2,678,602 6 19 .023848457
G1 10,400,400 1.0244 10,152,675 15 61 .013294628
G1 10,467,540 1.0090 10,374,172 9 16 .010475960
G1 13,370,630 1.0730 12,460,979 5 6 .006529556
Random Totals: 40,348,200   40,337,929 59 213  
Catg J Exception Values: 6,040,850   6,629,392      
Catg D1 Exception Values: 362,960   414,354      
Catg G1 Exception Values: 21,224,660   21,118,244      
Total Test Values (4): 67,976,670   68,499,919      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,424,995

Confidence Interval Values (5)

State Lower Limit: 65,074,924 (State Test Value minus Margin of Error Percent)
Local Test Value: 67,976,670 (Within Confidence Interval)
State Upper Limit: 71,924,914 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 111,206,270 (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, D2, E, 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