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2010 Confidence Interval Detail
200/Runnels
200-901/Ballinger ISD

Category Summary

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

Stratum
Variance
A 20,561,360 0.9602 21,413,622 15 682 .005343553
A 23,564,850 0.9853 23,916,421 13 446 .004250356
A 22,958,940 1.0611 21,636,924 10 286 .015545403
A 24,360,040 0.9677 25,173,132 9 175 .007828181
D3 45,199,970 1.0903 41,456,452 19 3,036 .026697846
F1 4,522,750 1.0608 4,263,528 9 138 .022292528
F1 4,493,830 0.9958 4,512,784 9 57 .011727976
F1 4,587,480 0.8538 5,373,015 8 21 .157963053
F1 4,926,210 0.9790 5,031,879 4 7 .013371923
G1 5,374,697 1.0538 5,100,301 8 34 .061173802
G1 5,339,922 1.0324 5,172,338 6 15 .002474445
G1 5,263,503 1.0471 5,026,743 4 7 .011463948
G1 4,675,602 1.0264 4,555,341 3 4 .032082882
Random Totals: 175,829,154   172,632,480 117 4,908  
Catg J Exception Values: 10,059,770   9,644,005      
Catg D1 Exception Values: 27,911,770   23,788,385      
Total Test Values (4): 213,800,694   206,064,870      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 10,303,244

Confidence Interval Values (5)

State Lower Limit: 195,761,626 (State Test Value minus Margin of Error Percent)
Local Test Value: 213,800,694 (Within Confidence Interval)
State Upper Limit: 216,368,114 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 244,896,792 (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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