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2007 Confidence Interval Detail
175/Navarro
175-903/Corsicana ISD

Category Summary

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

Stratum
Variance
A 111,504,196 0.7895 141,233,940 39 3,025 .070613319
A 111,476,714 0.7883 141,414,073 36 1,569 .047908135
A 111,401,488 0.8916 124,945,590 43 1,075 .052329401
A 111,440,568 0.9040 123,274,965 34 551 .015495103
D3 106,757,010 0.8952 119,254,926 26 3,993 .076954596
F1 50,814,465 1.0828 46,928,763 17 442 .094892409
F1 51,154,837 1.0615 48,191,085 10 121 .045138176
F1 52,598,091 0.9453 55,641,692 9 32 .014002058
L1 26,383,919 0.8454 31,208,799 7 306 .539095342
L1 26,254,517 0.8514 30,836,877 6 53 .065826768
L1 29,859,950 1.0070 29,652,383 6 14 .000142919
L1 22,275,859 1.0813 20,600,998 2 3 .025062495
Random Totals: 811,921,614   913,184,091 235 11,184  
Catg J Exception Values: 50,173,751   49,070,873      
Catg D1 Exception Values: 10,183,470   8,175,080      
Catg F1 Exception Values: 36,985,940   38,235,969      
Total Test Values (4): 909,264,775   1,008,666,013      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,433,301

Confidence Interval Values (5)

Local Test Value: 909,264,775 (Outside Confidence Interval)
State Lower Limit: 958,232,712 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,059,099,314 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,248,049,486 (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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