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2007 Confidence Interval Detail
249/Wise
249-902/Boyd ISD

Category Summary

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

Stratum
Variance
A 19,720,006 1.0059 19,604,340 9 321 .018343043
A 19,738,602 0.9385 21,032,075 10 197 .030903527
A 19,666,172 1.0207 19,267,338 10 141 .045061588
A 19,688,856 1.0018 19,653,480 9 94 .001629654
D3 108,318,810 1.1310 95,772,599 31 2,620 .096253680
G1 85,607,381 0.9879 86,655,918 7 172 .011588812
G1 85,403,248 1.0298 82,931,878 6 88 .002582173
G1 84,156,042 1.0167 82,773,721 6 58 .005297692
G1 84,844,286 0.9588 88,490,077 6 27 .001934236
Random Totals: 527,143,403   516,181,426 94 3,718  
Catg J Exception Values: 9,508,028   9,556,794      
Catg D1 Exception Values: 2,377,020   2,182,676      
Total Test Values (4): 539,028,451   527,920,896      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,396,045

Confidence Interval Values (5)

State Lower Limit: 501,524,851 (State Test Value minus Margin of Error Percent)
Local Test Value: 539,028,451 (Within Confidence Interval)
State Upper Limit: 554,316,941 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 602,795,022 (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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