taxes Property Tax Assistance

2017 Confidence Interval Detail

126/Johnson
126-904/Grandview ISD

Category Summary

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

Stratum
Variance
A 15,142,578 0.8595 17,617,892 11 246 .044003694
A 14,663,435 0.9033 16,233,184 12 154 .012709567
A 18,483,885 0.9143 20,216,433 11 125 .056896262
A 17,724,239 0.9097 19,483,609 11 77 .014683697
E 148,635,402 0.9473 156,904,256 26 1,263 .013444013
G1 5,681,078 1.1283 5,035,078 8 40 .123320795
G1 5,468,702 1.0814 5,057,058 7 19 .016889447
G1 6,048,338 1.2398 4,878,479 5 12 .068959986
G1 5,097,231 1.1236 4,536,517 4 7 .001608495
Random Totals: 236,944,888   249,962,506 95 1,943  
Catg J Exception Values: 5,124,290   5,044,092      
Catg D1 Exception Values: 5,187,059   4,245,759      
Total Test Values (4): 247,256,237   259,252,357      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,962,617

Confidence Interval Values (5)

State Lower Limit: 246,289,740 (State Test Value minus Margin of Error Percent)
Local Test Value: 247,256,237 (Within Confidence Interval)
State Upper Limit: 272,214,974 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 279,414,052 (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