taxes Property Tax Assistance

2018 Confidence Interval Detail

070/Ellis
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 226,220,794 0.8529 265,237,184 32 1658 0.018609227
A 360,067,249 0.9394 383,294,921 50 2024 0.006313914
A 503,800,146 0.9495 530,595,204 55 2265 0.006947316
A 519,771,348 0.9897 525,180,709 40 1553 0.003085917
F1 30,424,290 0.7794 39,035,527 10 114 0.066994576
F1 39,314,958 0.7727 50,879,977 11 47 0.072263025
F1 28,734,680 0.7032 40,862,742 5 15 0.038493148
F1 29,126,230 0.8094 35,984,964 4 5 0.012140939
Random Totals: 1,737,459,695 1,871,071,228 207 7,681
CATG D1 EXCEPTION VALUES: 1,950,730 1,279,092
Total Test Values(1) 1,739,410,425 1,872,350,320

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 93,617,516

Confidence Interval Values(5)

Local Test Value: 1,739,410,425 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 1,778,732,804 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,965,967,836 (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