Holiday Hours
Quick Start for:

2008 Confidence Interval Detail
070/Ellis
070-901/Avalon ISD

Category Summary

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

Stratum
Variance
A 2,665,240 0.9606 2,774,558 9 66 .029990470
A 2,920,700 0.9579 3,049,066 11 43 .006754422
A 2,691,520 0.9671 2,783,083 8 27 .004919908
A 2,744,260 0.9750 2,814,626 7 15 .000629396
D3 12,437,220 0.8892 13,986,977 25 571 .078530824
Random Totals: 23,458,940   25,408,310 60 722  
Catg J Exception Values: 1,585,080   1,605,769      
Catg D1 Exception Values: 3,914,678   3,598,380      
Catg F1 Exception Values: 3,535,450   3,545,363      
Total Test Values (4): 32,494,148   34,157,822      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,707,891

Confidence Interval Values (5)

State Lower Limit: 32,449,931 (State Test Value minus Margin of Error Percent)
Local Test Value: 32,494,148 (Within Confidence Interval)
State Upper Limit: 35,865,713 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 33,076,001 (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

Required Plug-ins