taxes Property Tax Assistance

2017 Confidence Interval Detail

236/Walker
236-902/Huntsville ISD

Category Summary

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

Stratum
Variance
A 280,178,351 0.9181 305,171,932 49 3,686 .036415077
A 306,506,840 0.9538 321,353,365 90 2,203 .010410338
A 358,317,298 0.9810 365,257,185 81 1,868 .010574916
A 422,867,497 0.9926 426,020,045 47 1,342 .006762652
B 83,999,320 0.9266 90,653,270 13 268 .015739657
B 60,450,670 0.5112 118,252,484 6 13 .005765916
B 75,515,130 0.5848 129,129,839 3 5 .011881254
E 367,111,058 0.9189 399,511,435 41 3,276 .048683883
F1 95,275,161 0.9958 95,677,004 10 394 .003829422
F1 100,379,706 0.9503 105,629,492 9 134 .018031365
F1 91,950,072 0.9720 94,598,840 8 45 .006330992
F1 91,441,236 0.9096 100,529,063 6 15 .037767160
Random Totals: 2,333,992,339   2,551,783,954 363 13,249  
Catg D1 Exception Values: 38,563,123   38,998,795      
Catg B Exception Values: 46,648,620   66,248,414      
Total Test Values (4): 2,419,204,082   2,657,031,163      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 132,851,558

Confidence Interval Values (5)

Local Test Value: 2,419,204,082 (Outside Confidence Interval)
State Lower Limit: 2,524,179,605 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,789,882,721 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,620,506,284 (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