taxes Property Tax Assistance

2018 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 5,312,460 0.9315 5,703,124 9 101 .007440668
A 6,760,025 0.9415 7,180,058 10 65 .029825640
A 6,680,681 0.9881 6,761,139 8 43 .001674638
A 8,540,105 0.9465 9,022,826 7 34 .006237095
E 79,492,792 1.0096 78,736,918 19 713 .053581071
G1 10,916,050 1.0079 10,830,489 9 63 .016199422
G1 10,558,500 1.0034 10,522,723 7 24 .002032708
G1 11,262,520 1.0104 11,146,595 6 18 .000770774
G1 10,128,980 1.0021 10,107,754 5 10 .000894371
Random Totals: 149,652,113   150,011,626 80 1,071  
Catg J Exception Values: 4,739,270   5,455,526      
Catg D1 Exception Values: 9,268,835   6,709,397      
Total Test Values (4): 163,660,218   162,176,549      

Margin of Error

Margin of Error Percent: 5.1274244
Margin of Error Value: 8,315,480

Confidence Interval Values (5)

State Lower Limit: 153,861,069 (State Test Value minus Margin of Error Percent)
Local Test Value: 163,660,218 (Within Confidence Interval)
State Upper Limit: 170,492,029 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 169,977,016 (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