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2009 Confidence Interval Detail
126/Johnson
126-907/Rio Vista ISD

Category Summary

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

Stratum
Variance
A 18,371,430 0.9427 19,488,098 9 347 .019041635
A 18,899,719 1.0371 18,223,623 11 207 .004626964
A 19,568,586 1.0591 18,476,618 10 145 .002078814
A 19,704,262 1.0653 18,496,444 10 79 .002651953
C 4,652,528 1.0542 4,413,326 7 228 .027271362
C 4,958,865 1.0038 4,940,093 8 153 .000010068
C 15,721,456 1.1003 14,288,336 16 382 .056247833
C 14,902,006 1.0094 14,763,232 12 224 .000270396
D3 54,923,531 1.0106 54,347,448 24 1,422 .025692910
G1 13,189,870 1.0467 12,601,385 7 35 .012741045
G1 14,304,738 0.9944 14,385,296 5 15 .008648952
G1 12,985,112 0.8794 14,765,877 4 8 .024003873
G1 12,080,766 0.8877 13,609,064 3 5 .066646674
Random Totals: 224,262,869   222,798,840 126 3,250  
Catg J Exception Values: 16,174,963   18,168,065      
Catg D1 Exception Values: 3,754,441   2,989,918      
Total Test Values (4): 244,192,273   243,956,823      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,197,841

Confidence Interval Values (5)

State Lower Limit: 231,758,982 (State Test Value minus Margin of Error Percent)
Local Test Value: 244,192,273 (Within Confidence Interval)
State Upper Limit: 256,154,664 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 301,269,073 (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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