taxes Property Tax Assistance

2017 Confidence Interval Detail

187/Polk
187-903/Goodrich ISD

Category Summary

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

Stratum
Variance
A 12,888,791 1.0850 11,879,070 15 282 .058258026
A 14,030,907 0.9916 14,149,765 18 180 .034285324
A 14,439,892 1.0355 13,944,850 16 132 .053486711
A 17,801,976 1.0480 16,986,618 17 95 .006425454
E 12,664,933 1.0207 12,408,086 16 188 .014775672
Random Totals: 71,826,499   69,368,389 82 877  
Catg J Exception Values: 6,181,270   5,607,790      
Catg D1 Exception Values: 3,374,059   3,195,835      
Total Test Values (4): 81,381,828   78,172,014      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,908,600

Confidence Interval Values (5)

State Lower Limit: 74,263,414 (State Test Value minus Margin of Error Percent)
Local Test Value: 81,381,828 (Within Confidence Interval)
State Upper Limit: 82,080,614 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 107,838,033 (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