taxes Property Tax Assistance

2016 Confidence Interval Detail

091/Grayson
091-908/Van Alstyne ISD

Category Summary

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

Stratum
Variance
A 67,661,292 0.9756 69,353,518 12 685 .023357553
A 83,914,014 0.9681 86,679,077 28 503 .011332518
A 89,056,192 1.0164 87,619,237 14 394 .002058719
A 115,962,344 1.0148 114,271,131 20 335 .001211737
E 93,901,468 0.9822 95,603,205 15 521 .006938010
F1 8,910,517 0.7331 12,154,572 10 65 .173276501
F1 11,496,936 0.9312 12,346,366 8 29 .009227744
F1 9,630,999 0.9930 9,698,891 6 11 .015232277
F1 10,705,274 0.8285 12,921,272 3 7 .095465161
Random Totals: 491,239,036   500,647,269 116 2,550  
Catg D1 Exception Values: 3,137,625   2,643,218      
Total Test Values (4): 494,376,661   503,290,487      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,164,524

Confidence Interval Values (5)

State Lower Limit: 478,125,963 (State Test Value minus Margin of Error Percent)
Local Test Value: 494,376,661 (Within Confidence Interval)
State Upper Limit: 528,455,011 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 516,695,865 (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