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2006 Confidence Interval Detail
070/Ellis
070-915/Maypearl ISD

Category Summary

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

Stratum
Variance
A 25,478,724 0.9138 27,882,167 7 304 .044224937
A 25,415,515 0.9777 25,995,208 9 202 .001386571
A 25,504,386 0.9809 26,001,005 22 144 .011125435
A 25,221,641 1.0358 24,349,914 8 89 .011860967
D3 42,838,205 1.0469 40,919,099 21 1,471 .225134974
Random Totals: 144,458,471   145,147,393 67 2,210  
Catg J Exception Values: 14,011,977   12,922,917      
Catg D1 Exception Values: 4,773,394   3,763,171      
Total Test Values (4): 163,243,842   161,833,481      

Margin of Error

Margin of Error Percent: 5.9988186
Margin of Error Value: 9,708,097

Confidence Interval Values (5)

State Lower Limit: 152,125,384 (State Test Value minus Margin of Error Percent)
Local Test Value: 163,243,842 (Within Confidence Interval)
State Upper Limit: 171,541,578 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 166,151,216 (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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