taxes Property Tax Assistance

2016 Confidence Interval Detail

070/Ellis
070-905/Ferris ISD

Category Summary

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

Stratum
Variance
A 48,238,336 0.9247 52,166,471 10 1,017 .020225785
A 47,702,344 0.9796 48,695,737 11 549 .034648162
A 49,300,549 0.9542 51,666,893 11 371 .001923616
A 58,020,353 0.9827 59,041,776 10 288 .007236868
E 52,386,573 1.0008 52,344,697 15 602 .009634822
F1 3,758,360 0.8796 4,272,806 7 42 .021766805
F1 5,387,200 0.7729 6,970,113 7 25 .055628308
F1 4,590,550 0.8295 5,534,117 7 11 .044473285
F1 5,433,140 1.0351 5,248,903 2 3 .008295918
Random Totals: 274,817,405   285,941,513 80 2,908  
Catg D1 Exception Values: 9,769,034   8,322,556      
Total Test Values (4): 284,586,439   294,264,069      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,713,203

Confidence Interval Values (5)

State Lower Limit: 279,550,866 (State Test Value minus Margin of Error Percent)
Local Test Value: 284,586,439 (Within Confidence Interval)
State Upper Limit: 308,977,272 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 302,374,967 (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