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2011 Confidence Interval Detail
212/Smith
212-904/Troup ISD

Category Summary

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

Stratum
Variance
A 11,545,245 0.9081 12,713,627 7 315 .029290655
A 11,524,326 0.9460 12,182,163 7 179 .086416783
A 12,433,622 0.9505 13,081,138 8 135 .039649861
A 12,751,627 0.9080 14,043,642 7 80 .002014480
D3 30,920,407 1.1290 27,387,429 17 1,460 .041139251
G1 21,390,378 1.0184 21,003,906 11 129 .002108945
G1 21,450,452 0.9947 21,564,745 10 69 .004270977
G1 21,194,917 1.0242 20,694,119 8 45 .009843877
G1 21,125,225 1.0171 20,770,057 7 28 .007560652
L1 9,078,200 0.9645 9,412,338 9 35 .004058430
Random Totals: 173,414,399   172,853,164 91 2,475  
Catg D1 Exception Values: 3,154,404   2,690,091      
Catg L1 Exception Values: 4,606,278   4,708,160      
Total Test Values (4): 181,175,081   180,251,415      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 9,012,571

Confidence Interval Values (5)

State Lower Limit: 171,238,844 (State Test Value minus Margin of Error Percent)
Local Test Value: 181,175,081 (Within Confidence Interval)
State Upper Limit: 189,263,986 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 205,473,264 (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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