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2011 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 269,706,777 0.9564 282,002,067 74 2,478 .009137357
A 271,112,499 0.9901 273,823,350 58 1,685 .009238304
A 265,210,089 0.9667 274,345,804 47 1,098 .013351175
A 280,312,569 0.9559 293,244,658 20 458 .008576636
D3 147,014,151 0.9122 161,164,384 15 3,603 .064344691
F1 35,806,207 1.0130 35,346,700 12 167 .035070045
F1 35,839,290 1.0349 34,630,679 10 65 .006568125
F1 37,955,918 1.0196 37,226,283 7 29 .021096590
F1 33,802,662 1.2363 27,341,796 4 8 .098707134
Random Totals: 1,376,760,162   1,419,125,721 247 9,591  
Catg D1 Exception Values: 5,365,009   3,864,779      
Total Test Values (4): 1,382,125,171   1,422,990,500      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 71,149,525

Confidence Interval Values (5)

State Lower Limit: 1,351,840,975 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,382,125,171 (Within Confidence Interval)
State Upper Limit: 1,494,140,025 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,626,709,342 (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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