taxes Property Tax Assistance

2017 Confidence Interval Detail

049/Cooke
049-906/Era ISD

Category Summary

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

Stratum
Variance
A 5,289,106 0.9616 5,500,318 9 108 .038949073
A 5,695,987 1.0140 5,617,344 8 60 .006180389
A 5,828,943 0.9638 6,047,876 8 40 .026657690
A 6,345,812 0.9816 6,464,764 7 27 .008004396
E 69,651,754 0.8646 80,559,512 20 712 .074177820
G1 6,546,140 1.0049 6,514,220 11 86 .016338473
G1 6,488,770 1.0237 6,338,546 9 29 .003056166
G1 6,610,300 0.9879 6,691,264 8 18 .002647995
G1 6,217,080 1.0114 6,147,004 5 7 .002160233
Random Totals: 118,673,892   129,880,848 85 1,087  
Catg J Exception Values: 374,790   300,966      
Catg D1 Exception Values: 9,276,615   7,208,061      
Total Test Values (4): 128,325,297   137,389,875      

Margin of Error

Margin of Error Percent: 7.0582865
Margin of Error Value: 9,697,371

Confidence Interval Values (5)

State Lower Limit: 127,692,504 (State Test Value minus Margin of Error Percent)
Local Test Value: 128,325,297 (Within Confidence Interval)
State Upper Limit: 147,087,246 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 143,857,920 (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