taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 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 217,312,115 0.9477 229,304,754 54 2,116 .005281337
A 251,951,416 0.9738 258,730,146 83 1,888 .005893072
A 293,742,314 0.9820 299,126,593 90 1,741 .009797801
A 286,428,088 0.9874 290,083,136 52 1,111 .005423809
F1 24,258,100 0.8915 27,210,432 10 114 .022313890
F1 24,316,901 0.9214 26,391,254 9 39 .042371671
F1 23,770,151 0.8691 27,350,306 7 20 .042698739
F1 26,636,230 0.9444 28,204,394 3 6 .014481893
Random Totals: 1,148,415,315   1,186,401,015 308 7,035  
Catg D1 Exception Values: 2,282,311   1,632,603      
Total Test Values (4): 1,150,697,626   1,188,033,618      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 59,401,681

Confidence Interval Values (5)

State Lower Limit: 1,128,631,937 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,150,697,626 (Within Confidence Interval)
State Upper Limit: 1,247,435,299 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,379,214,597 (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