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2009 Confidence Interval Detail
147/Limestone
147-903/Mexia ISD

Category Summary

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

Stratum
Variance
A 43,122,447 0.9641 44,728,189 18 1,285 .010929714
A 43,811,075 0.9980 43,898,873 14 723 .009715030
A 42,743,898 0.9552 44,748,637 16 462 .002453421
A 45,844,020 0.9814 46,712,880 14 275 .004434805
D3 74,729,679 0.9931 75,248,896 24 3,572 .007306045
F1 16,969,278 0.9509 17,845,492 7 183 .002057654
F1 16,826,789 0.9430 17,843,891 6 55 .004474834
F1 17,033,600 0.9502 17,926,331 5 17 .000984246
G1 8,851,743 0.9864 8,973,786 6 28 .011630917
G1 8,818,385 0.9827 8,973,629 5 14 .005460526
G1 8,253,120 0.9846 8,382,206 4 10 .008095910
G1 8,324,520 0.9641 8,634,498 4 7 .000625553
L1 8,534,801 1.0066 8,478,841 7 144 .003152365
L1 7,971,615 1.0093 7,898,162 5 21 .000445959
Random Totals: 351,834,970   360,294,311 135 6,796  
Catg J Exception Values: 20,102,789   19,834,816      
Catg D1 Exception Values: 4,259,704   4,749,891      
Catg F1 Exception Values: 14,450,970   14,523,837      
Catg L1 Exception Values: 11,506,413   11,719,691      
Total Test Values (4): 402,154,846   411,122,546      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 20,556,127

Confidence Interval Values (5)

State Lower Limit: 390,566,419 (State Test Value minus Margin of Error Percent)
Local Test Value: 402,154,846 (Within Confidence Interval)
State Upper Limit: 431,678,673 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 400,110,669 (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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