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2006 Confidence Interval Detail
054/Crosby
054-903/Ralls ISD

Category Summary

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

Stratum
Variance
A 7,096,231 0.8730 8,128,558 14 331 .069190520
A 7,058,090 0.9457 7,463,350 14 178 .043345290
A 7,136,170 0.9178 7,775,300 14 113 .022837839
A 7,013,888 0.9697 7,233,049 16 62 .014602382
D3 6,776,080 1.0327 6,561,518 19 1,385 .022121048
F1 1,039,395 0.8578 1,211,699 6 52 .032692125
F1 973,723 0.9124 1,067,211 5 17 .015318707
F1 1,004,123 0.8745 1,148,225 6 8 .019657372
F1 989,067 0.9617 1,028,457 2 4 .008329510
G1 1,388,925 1.2657 1,097,357 9 13 .170198176
Random Totals: 40,475,692   42,714,724 105 2,163  
Catg J Exception Values: 2,851,361   2,466,175      
Catg D1 Exception Values: 15,170,370   14,074,885      
Catg G1 Exception Values: 16,143,831   17,035,315      
Total Test Values (4): 74,641,254   76,291,099      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 3,814,555

Confidence Interval Values (5)

State Lower Limit: 72,476,544 (State Test Value minus Margin of Error Percent)
Local Test Value: 74,641,254 (Within Confidence Interval)
State Upper Limit: 80,105,654 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 77,199,337 (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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