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2010 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 30,806,610 0.9542 32,285,276 11 425 .014256015
A 29,629,120 0.9047 32,750,216 10 241 .014925902
A 33,384,520 1.0114 33,008,226 9 184 .006824163
A 29,421,630 0.9884 29,766,926 12 107 .002827900
D3 63,946,234 0.9992 63,997,432 15 1,343 .026400737
Random Totals: 187,188,114   191,808,076 57 2,300  
Catg J Exception Values: 38,164,783   45,853,025      
Catg D1 Exception Values: 5,134,126   3,500,316      
Total Test Values (4): 230,487,023   241,161,417      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 12,058,071

Confidence Interval Values (5)

State Lower Limit: 229,103,346 (State Test Value minus Margin of Error Percent)
Local Test Value: 230,487,023 (Within Confidence Interval)
State Upper Limit: 253,219,488 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 258,668,048 (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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