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2006 Confidence Interval Detail
063/Dickens
063-903/Spur ISD

Category Summary

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

Stratum
Variance
A 3,154,340 1.0777 2,926,918 7 310 .020867425
A 3,154,130 1.0171 3,101,101 7 161 .074562843
A 3,160,125 1.0051 3,144,090 7 96 .036598764
A 3,122,724 1.1238 2,778,719 6 57 .017287925
D3 11,452,540 0.9683 11,827,471 12 2,382 .053843995
G1 31,082,650 0.9822 31,645,948 7 40 .011808496
G1 33,963,977 1.0157 33,438,985 5 13 .007159699
G1 25,586,353 1.0121 25,280,459 3 4 .148269854
Random Totals: 114,676,839   114,143,691 54 3,063  
Catg D1 Exception Values: 20,428,720   23,825,050      
Catg G1 Exception Values: 30,199,262   28,683,568      
Total Test Values (4): 165,304,821   166,652,309      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,332,615

Confidence Interval Values (5)

State Lower Limit: 158,319,694 (State Test Value minus Margin of Error Percent)
Local Test Value: 165,304,821 (Within Confidence Interval)
State Upper Limit: 174,984,924 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 195,418,494 (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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