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2008 Confidence Interval Detail
229/Tyler
229-906/Chester ISD

Category Summary

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

Stratum
Variance
A 1,482,145 0.9209 1,609,453 10 61 .086378647
A 2,373,915 0.9332 2,543,844 14 61 .077717452
A 3,460,530 0.8344 4,147,327 22 58 .041010312
A 3,514,135 1.0199 3,445,568 22 30 .062481518
D3 8,142,778 0.8607 9,460,646 24 787 .010090887
Random Totals: 18,973,503   21,206,838 92 997  
Catg J Exception Values: 2,351,347   1,668,966      
Catg D1 Exception Values: 10,505,300   10,445,500      
Total Test Values (4): 31,830,150   33,321,304      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,666,065

Confidence Interval Values (5)

State Lower Limit: 31,655,239 (State Test Value minus Margin of Error Percent)
Local Test Value: 31,830,150 (Within Confidence Interval)
State Upper Limit: 34,987,369 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 46,294,772 (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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