taxes Property Tax Assistance

2017 Confidence Interval Detail

041/Coke
177-903/Blackwell CISD

Category Summary

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

Stratum
Variance
A 2,005,060 0.8851 2,265,349 15 59 .009797034
A 1,874,680 0.9358 2,003,291 16 31 .002864637
A 2,887,630 0.9783 2,951,681 14 34 .002526823
A 2,607,300 0.9881 2,638,701 9 16 .001096457
E 3,721,780 0.8846 4,207,303 20 69 .030082781
G1 973,120 0.6789 1,433,378 7 17 .685496981
Random Totals: 14,069,570   15,499,703 81 226  
Catg J Exception Values: 732,540   1,005,776      
Catg D1 Exception Values: 1,336,890   1,392,316      
Catg G1 Exception Values: 257,280   253,497      
Total Test Values (4): 16,396,280   18,151,292      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 907,564

Confidence Interval Values (5)

Local Test Value: 16,396,280 (Outside Confidence Interval)
State Lower Limit: 17,243,728 (State Test Value minus Margin of Error Percent)
State Upper Limit: 19,058,856 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 21,372,485 (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