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2009 Confidence Interval Detail
073/Falls
073-903/Marlin ISD

Category Summary

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

Stratum
Variance
A 22,224,860 1.1109 20,006,175 15 995 .109495279
A 23,819,970 1.0367 22,976,724 14 536 .069049484
A 23,745,810 0.9807 24,213,123 16 370 .014195005
A 24,661,040 1.0130 24,344,561 15 224 .007331479
D3 26,975,320 0.9486 28,436,981 24 3,057 .387484894
F1 4,296,110 0.6191 6,939,283 16 142 .184253693
F1 4,525,880 0.5217 8,675,254 16 52 .227348172
F1 4,573,490 0.6721 6,804,776 13 17 .165673901
F1 5,316,270 0.9928 5,354,825 5 7 .117305813
L1 2,897,100 0.9650 3,002,176 10 93 .247710326
L1 3,099,660 1.0837 2,860,257 7 18 .013452713
L1 2,480,190 0.8661 2,863,630 4 5 .032828491
Random Totals: 148,615,700   156,477,765 155 5,516  
Catg J Exception Values: 20,776,608   21,264,185      
Catg D1 Exception Values: 22,095,550   20,672,178      
Catg L1 Exception Values: 4,867,940   4,740,555      
Total Test Values (4): 196,355,798   203,154,683      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,157,734

Confidence Interval Values (5)

State Lower Limit: 192,996,949 (State Test Value minus Margin of Error Percent)
Local Test Value: 196,355,798 (Within Confidence Interval)
State Upper Limit: 213,312,417 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 187,253,179 (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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