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2008 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 6,405,210 0.9582 6,684,627 15 289 .036640071
A 6,423,850 0.9498 6,763,371 15 160 .042484881
A 7,752,460 0.9962 7,782,032 16 126 .017813276
A 12,085,080 1.0744 11,248,213 18 104 .037052101
D3 8,108,560 0.9884 8,203,723 20 1,447 .029838771
G1 5,939,725 0.9930 5,981,596 15 21 .005592389
Random Totals: 46,714,885   46,663,562 99 2,147  
Catg D1 Exception Values: 22,275,150   21,666,781      
Catg G1 Exception Values: 27,292,618   26,569,837      
Total Test Values (4): 96,282,653   94,900,180      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,745,009

Confidence Interval Values (5)

State Lower Limit: 90,155,171 (State Test Value minus Margin of Error Percent)
Local Test Value: 96,282,653 (Within Confidence Interval)
State Upper Limit: 99,645,189 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 103,042,984 (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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