taxes Property Tax Assistance

2020 Confidence Interval Detail

Ellis County
070-911/Red Oak ISD

Category Summary

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

Stratum
Variance
A 392,339,081 0.9493 413,293,038 59 2,328 0.008933871
A 510,655,217 0.9830 519,486,487 60 2,362 0.003403620
A 553,036,580 0.9858 561,002,820 60 2,119 0.005347312
A 524,205,093 1.0253 511,269,963 60 1,390 0.008366424
F1 40,542,608 1.0778 37,616,077 10 111 0.038604865
F1 37,878,761 1.1250 33,670,010 9 39 0.010661054
F1 39,153,190 1.4809 26,438,780 7 23 0.059269877
F1 76,403,720 1.0936 69,864,411 5 16 0.018851782
Random Totals: 2,174,214,250 2,172,641,586 270 8,388
CATG D1 EXCEPTION VALUES: 1,628,668 654,083
Total Test Values 2,175,842,918 2,173,295,669

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 108,664,783

Confidence Interval Values(5)

Local Test Value: 2,175,842,918 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 2,064,630,886 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,281,960,452 (State Test Value plus Margin of Error Percent)

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