Holiday Hours
Quick Start for:

2009 Confidence Interval Detail
212/Smith
212-902/Bullard ISD

Category Summary

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

Stratum
Variance
A 105,722,346 0.9425 112,172,250 42 961 .015637187
A 110,279,930 1.0120 108,972,263 42 567 .023411358
A 108,404,099 0.9776 110,887,990 25 375 .017254822
A 118,883,486 1.1092 107,179,486 8 249 .028879347
D3 47,279,165 0.9488 49,830,486 11 1,485 .131942030
Random Totals: 490,569,026   489,042,475 128 3,637  
Catg D1 Exception Values: 2,057,312   1,419,427      
Total Test Values (4): 492,626,338   490,461,902      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,523,095

Confidence Interval Values (5)

State Lower Limit: 465,938,807 (State Test Value minus Margin of Error Percent)
Local Test Value: 492,626,338 (Within Confidence Interval)
State Upper Limit: 514,984,997 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 500,051,201 (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