taxes Property Tax Assistance

2018 Confidence Interval Detail

039/Clay
039-903/Petrolia CISD

Category Summary

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

Stratum
Variance
A 17,089,790 0.7272 23,500,811 18 378 .222482413
A 19,210,920 0.9238 20,795,540 14 218 .037875351
A 16,924,760 0.9750 17,358,728 16 123 .022879046
A 20,653,240 1.0313 20,026,413 14 96 .004230216
E 32,345,900 0.7960 40,635,553 19 516 .099525793
Random Totals: 106,224,610   122,317,045 81 1,331  
Catg J Exception Values: 13,413,470   14,631,988      
Catg D1 Exception Values: 14,005,300   12,994,370      
Total Test Values (4): 133,643,380   149,943,403      

Margin of Error

Margin of Error Percent: 5.3754796
Margin of Error Value: 8,060,177

Confidence Interval Values (5)

Local Test Value: 133,643,380 (Outside Confidence Interval)
State Lower Limit: 141,883,226 (State Test Value minus Margin of Error Percent)
State Upper Limit: 158,003,580 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 135,631,186 (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