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2009 Confidence Interval Detail
249/Wise
249-903/Bridgeport ISD

Category Summary

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

Stratum
Variance
A 81,500,150 0.9810 83,078,644 14 1,130 .017745734
A 81,048,260 0.9766 82,990,231 16 674 .035445090
A 83,648,680 0.9770 85,617,892 16 480 .039131503
A 86,722,750 0.9386 92,395,856 14 282 .006121237
D3 122,593,980 0.8883 138,009,659 16 2,974 .105598125
F1 28,547,600 0.9583 29,789,836 8 192 .051231225
F1 30,340,170 0.9264 32,750,615 7 84 .021979954
F1 30,930,460 0.9759 31,694,292 6 40 .038628849
F1 35,230,080 0.9928 35,485,576 5 16 .006123409
G1 28,187,361 1.0644 26,481,925 7 211 .027862931
G1 28,128,551 0.9980 28,184,921 9 92 .009144044
G1 28,282,527 0.9806 28,842,063 7 51 .001609922
G1 27,741,842 1.0237 27,099,582 5 20 .001889329
L1 14,431,060 1.0598 13,616,777 8 188 .006354721
L1 11,736,320 1.0533 11,142,429 6 38 .010213573
L1 13,742,420 1.0367 13,255,927 8 19 .008153925
L1 14,083,860 0.9184 15,335,213 3 7 .003227240
Random Totals: 746,896,071   775,771,438 155 6,498  
Catg J Exception Values: 27,568,330   28,005,852      
Catg D1 Exception Values: 4,190,440   4,104,547      
Total Test Values (4): 778,654,841   807,881,837      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 40,394,092

Confidence Interval Values (5)

State Lower Limit: 767,487,745 (State Test Value minus Margin of Error Percent)
Local Test Value: 778,654,841 (Within Confidence Interval)
State Upper Limit: 848,275,929 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,252,456,317 (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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