taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
091/Grayson
091-913/Pottsboro ISD

Category Summary

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

Stratum
Variance
A 119,451,633 1.0006 119,380,005 46 1,645 .004082103
A 121,639,640 0.9798 124,147,418 48 843 .012131675
A 130,970,388 0.9836 133,154,115 41 588 .002499220
A 146,034,400 0.9913 147,316,050 23 339 .000512353
E 79,880,573 1.0179 78,475,855 14 651 .009438470
F1 15,799,445 1.0174 15,529,236 11 116 .008171499
F1 20,097,048 0.8860 22,682,898 9 35 .054423726
F1 17,884,451 0.9488 18,849,548 5 9 .002314579
G1 11,130,906 1.0929 10,184,743 8 30 .021430352
G1 10,213,434 1.0492 9,734,497 6 13 .019645017
G1 10,787,441 1.0916 9,882,229 4 7 .003748180
G1 10,091,339 1.0168 9,924,606 2 3 .002107569
Random Totals: 693,980,698   699,261,200 217 4,279  
Catg D1 Exception Values: 2,187,668   1,698,485      
Catg F1 Exception Values: 12,365,187   11,974,946      
Total Test Values (4): 708,533,553   712,934,631      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 35,646,731

Confidence Interval Values (5)

State Lower Limit: 677,287,900 (State Test Value minus Margin of Error Percent)
Local Test Value: 708,533,553 (Within Confidence Interval)
State Upper Limit: 748,581,362 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 745,591,885 (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