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2009 Confidence Interval Detail
107/Henderson
107-910/La Poynor ISD

Category Summary

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

Stratum
Variance
A 7,409,980 0.8165 9,075,297 7 139 .061115143
A 7,820,110 1.0013 7,809,957 6 81 .009378310
A 7,891,830 1.0256 7,694,842 7 49 .002924865
A 8,867,970 0.9968 8,896,439 5 29 .004716064
D3 63,570,500 1.0188 62,397,428 18 1,849 .102691125
G1 10,099,120 1.0078 10,020,957 5 6 .006136502
Random Totals: 105,659,510   105,894,920 48 2,153  
Catg D1 Exception Values: 6,605,930   6,588,325      
Catg G1 Exception Values: 140,203,365   145,125,564      
Total Test Values (4): 252,468,805   257,608,809      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,880,440

Confidence Interval Values (5)

State Lower Limit: 244,728,369 (State Test Value minus Margin of Error Percent)
Local Test Value: 252,468,805 (Within Confidence Interval)
State Upper Limit: 270,489,249 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 277,464,600 (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

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