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2012 Confidence Interval Detail
030/Callahan
030-903/Baird ISD

Category Summary

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

Stratum
Variance
A 7,562,980 0.9482 7,976,144 13 290 .005189333
A 7,221,550 0.9709 7,437,996 15 144 .088357394
A 7,393,020 0.9511 7,773,126 11 93 .008799581
A 7,732,160 1.0067 7,680,699 11 54 .012329888
D3 34,225,410 0.8572 39,926,983 17 2,515 .036404949
F1 1,344,890 0.9555 1,407,525 12 57 .037995237
F1 1,714,140 0.9345 1,834,286 8 18 .001714862
F1 1,485,030 1.1006 1,349,291 3 3 .045932191
G1 1,706,153 1.0260 1,662,917 8 49 .029442856
G1 1,727,400 1.0363 1,666,892 6 14 .027897700
G1 1,960,154 1.0239 1,914,400 4 6 .009923999
Random Totals: 74,072,887   80,630,259 108 3,243  
Catg J Exception Values: 5,124,180   8,116,873      
Catg D1 Exception Values: 11,187,850   11,648,115      
Catg F1 Exception Values: 4,224,980   4,189,930      
Catg G1 Exception Values: 3,159,600   3,105,666      
Total Test Values (4): 97,769,497   107,690,843      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,384,542

Confidence Interval Values (5)

Local Test Value: 97,769,497 (Outside Confidence Interval)
State Lower Limit: 102,306,301 (State Test Value minus Margin of Error Percent)
State Upper Limit: 113,075,385 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 116,583,569 (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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