taxes Property Tax Assistance

2016 Confidence Interval Detail

090/Gray
033-901/Groom ISD

Category Summary

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

Stratum
Variance
E 2,882,870 1.0276 2,805,440 13 72 .008902931
G1 766,510 0.9749 786,245 18 22 .040664010
Random Totals: 3,649,380   3,591,685 31 94  
Catg J Exception Values: 280,010   244,109      
Catg D1 Exception Values: 2,692,900   3,318,622      
Total Test Values (4): 6,622,290   7,154,416      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 357,720

Confidence Interval Values (5)

Local Test Value: 6,622,290 (Outside Confidence Interval)
State Lower Limit: 6,796,696 (State Test Value minus Margin of Error Percent)
State Upper Limit: 7,512,136 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 11,975,990 (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