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2009 Confidence Interval Detail
212/Smith
212-906/Whitehouse ISD

Category Summary

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

Stratum
Variance
A 251,125,272 0.9300 270,027,174 53 2,342 .005689697
A 263,871,316 0.9980 264,400,116 63 1,675 .006598789
A 260,738,904 0.9948 262,101,834 54 1,125 .008105391
A 267,353,139 1.0238 261,138,053 22 469 .005374197
D3 132,210,347 0.9688 136,468,153 28 3,442 .234633907
F1 34,536,318 1.0265 33,644,733 8 165 .003891978
F1 35,307,509 1.0012 35,265,191 7 64 .000438427
F1 35,534,337 0.9786 36,311,401 6 27 .001892223
F1 36,201,553 1.0207 35,467,378 5 8 .001689536
Random Totals: 1,316,878,695   1,334,824,033 246 9,317  
Catg D1 Exception Values: 5,755,099   4,455,384      
Total Test Values (4): 1,322,633,794   1,339,279,417      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 66,963,971

Confidence Interval Values (5)

State Lower Limit: 1,272,315,446 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,322,633,794 (Within Confidence Interval)
State Upper Limit: 1,406,243,388 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,595,701,517 (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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