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2007 Confidence Interval Detail
214/Starr
214-901/Rio Grande City ISD

Category Summary

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

Stratum
Variance
A 69,892,489 0.7690 90,887,502 16 3,472 .122177467
A 69,863,861 0.7834 89,180,318 16 2,003 .065601847
A 69,871,302 0.7547 92,581,558 16 1,253 .035638636
A 69,873,300 0.8242 84,777,117 20 614 .026276277
C 14,412,587 0.5147 28,001,918 14 2,969 .597906258
C 14,267,836 0.7761 18,384,018 38 1,782 .050384048
C 14,320,913 0.9391 15,249,615 29 830 .039762795
C 14,317,774 0.5860 24,433,061 10 186 .055203878
F1 24,393,148 0.7853 31,062,203 7 284 .021211197
F1 24,268,485 0.7607 31,902,833 9 73 .067166320
F1 25,893,933 0.8167 31,705,563 6 26 .091948699
G1 118,133,058 0.9410 125,539,913 10 189 .022696193
G1 118,556,809 0.9788 121,124,652 10 73 .018236994
G1 115,956,657 0.9856 117,650,829 8 30 .014174270
G1 116,116,520 1.0129 114,637,694 6 12 .021940367
Random Totals: 880,138,672   1,017,118,794 215 13,796  
Catg D1 Exception Values: 33,325,800   36,319,911      
Catg F1 Exception Values: 20,601,160   22,188,158      
Total Test Values (4): 934,065,632   1,075,626,863      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 53,781,343

Confidence Interval Values (5)

Local Test Value: 934,065,632 (Outside Confidence Interval)
State Lower Limit: 1,021,845,520 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,129,408,206 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,008,733,587 (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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