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2007 Confidence Interval Detail
214/Starr
214-903/Roma ISD

Category Summary

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

Stratum
Variance
A 37,698,324 0.5630 66,959,723 20 2,175 .083142711
A 37,674,729 0.6066 62,108,027 24 1,305 .081703652
A 37,695,058 0.7023 53,673,726 20 855 .063763908
A 37,638,759 0.8048 46,767,842 20 457 .058147016
C 7,957,540 0.5973 13,322,518 18 1,687 1.726854343
C 6,605,140 0.8265 7,991,700 19 1,021 .147115777
C 7,295,764 0.9937 7,342,019 17 708 .057471553
C 7,265,001 1.0647 6,823,519 17 135 .016421814
D3 11,373,030 0.6953 16,357,011 23 8,404 3.388657622
F1 8,708,430 0.8186 10,638,199 10 199 .061355340
F1 8,691,179 0.8533 10,185,373 12 91 .051796277
F1 8,632,620 0.6635 13,010,731 10 48 .132440227
F1 8,551,793 0.5630 15,189,686 8 17 .045077723
G1 45,167,453 0.9191 49,143,132 15 66 .039618555
G1 45,522,578 0.9307 48,912,193 15 27 .053528487
G1 44,955,630 0.9790 45,919,949 11 14 .012343626
G1 44,775,690 0.9717 46,079,747 6 7 .019343968
Random Totals: 406,208,718   520,425,095 265 17,216  
Catg J Exception Values: 10,957,457   10,991,622      
Catg D1 Exception Values: 20,273,330   24,101,312      
Total Test Values (4): 437,439,505   555,518,029      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 27,775,901

Confidence Interval Values (5)

Local Test Value: 437,439,505 (Outside Confidence Interval)
State Lower Limit: 527,742,128 (State Test Value minus Margin of Error Percent)
State Upper Limit: 583,293,930 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 438,040,958 (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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