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2008 Confidence Interval Detail
107/Henderson
107-908/Murchison ISD

Category Summary

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

Stratum
Variance
A 3,160,190 0.9787 3,228,967 6 72 .073672592
A 2,799,450 1.0551 2,653,256 6 41 .023265398
A 3,121,670 1.1299 2,762,784 6 35 .043171661
A 3,736,710 1.0456 3,573,747 5 28 .005890503
D3 10,044,880 0.9225 10,888,759 10 334 .009640645
G1 8,871,938 1.0031 8,844,520 7 12 .002069283
Random Totals: 31,734,838   31,952,033 40 522  
Catg J Exception Values: 3,095,290   3,227,043      
Catg D1 Exception Values: 600,090   549,466      
Catg G1 Exception Values: 6,312,540   6,246,095      
Total Test Values (4): 41,742,758   41,974,637      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 2,098,732

Confidence Interval Values (5)

State Lower Limit: 39,875,905 (State Test Value minus Margin of Error Percent)
Local Test Value: 41,742,758 (Within Confidence Interval)
State Upper Limit: 44,073,369 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 42,099,443 (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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