taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 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 117,989,864 0.9442 124,962,788 15 1,641 .048737578
A 113,406,667 0.8434 134,463,679 15 805 .045047452
A 128,358,634 0.9072 141,488,794 15 587 .014604864
A 120,356,915 0.9031 133,270,861 15 287 .071962956
E 73,565,707 0.9391 78,336,393 17 634 .027991133
F1 14,795,643 0.8748 16,913,172 9 116 .034948814
F1 15,082,513 0.8384 17,989,639 10 31 .036954547
F1 16,856,425 0.8532 19,756,710 7 12 .083154607
G1 12,020,763 0.9637 12,473,553 8 28 .016632064
G1 13,300,722 1.0429 12,753,593 7 13 .011997463
G1 12,777,405 1.0141 12,599,749 4 7 .033626009
G1 9,822,876 1.0397 9,447,798 2 3 .007393551
Random Totals: 648,334,134   714,456,729 124 4,164  
Catg D1 Exception Values: 2,185,452   1,692,165      
Catg F1 Exception Values: 17,616,149   17,774,322      
Total Test Values (4): 668,135,735   733,923,216      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 36,696,161

Confidence Interval Values (5)

Local Test Value: 668,135,735 (Outside Confidence Interval)
State Lower Limit: 697,227,055 (State Test Value minus Margin of Error Percent)
State Upper Limit: 770,619,377 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 729,430,427 (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