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2009 Confidence Interval Detail
161/McLennan
161-908/Mart ISD

Category Summary

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

Stratum
Variance
A 10,146,272 1.0347 9,806,004 13 357 .041860579
A 9,262,445 0.9882 9,373,047 13 179 .023075329
A 9,932,871 0.9598 10,348,897 13 129 .012551609
A 10,564,167 0.9568 11,041,144 12 85 .008567053
D3 16,586,585 0.9529 17,406,428 20 658 .026379835
F1 1,479,056 1.0726 1,378,945 6 45 .062163404
F1 1,426,785 0.9871 1,445,431 5 14 .001911204
F1 1,638,731 0.9911 1,653,447 3 7 .003158545
L1 856,428 1.0059 851,405 8 34 .002262206
L1 1,379,534 0.9864 1,398,554 7 11 .004258588
L1 612,548 0.9874 620,365 3 3 .000671765
Random Totals: 63,885,422   65,323,667 103 1,522  
Catg J Exception Values: 3,352,060   3,279,739      
Catg D1 Exception Values: 2,678,933   2,129,177      
Catg F1 Exception Values: 1,486,498   1,499,541      
Catg L1 Exception Values: 344,051   346,100      
Total Test Values (4): 71,746,964   72,578,224      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,628,911

Confidence Interval Values (5)

State Lower Limit: 68,949,313 (State Test Value minus Margin of Error Percent)
Local Test Value: 71,746,964 (Within Confidence Interval)
State Upper Limit: 76,207,135 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 60,916,089 (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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