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2008 Confidence Interval Detail
251/Yoakum
251-902/Plains ISD

Category Summary

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

Stratum
Variance
D3 14,199,566 0.8937 15,888,515 30 2,109 .094889312
G1 163,714,582 0.9975 164,124,894 15 68 .000050174
G1 161,404,411 0.9548 169,045,257 9 11 .020213770
Random Totals: 339,318,559   349,058,666 54 2,188  
Catg D1 Exception Values: 49,201,866   64,192,881      
Catg G1 Exception Values: 517,801,538   518,058,597      
Total Test Values (4): 906,321,963   931,310,144      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 46,565,507

Confidence Interval Values (5)

State Lower Limit: 884,744,637 (State Test Value minus Margin of Error Percent)
Local Test Value: 906,321,963 (Within Confidence Interval)
State Upper Limit: 977,875,651 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,072,952,860 (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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