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2006 Confidence Interval Detail
062/Dewitt
062-905/Westhoff ISD

Category Summary

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

Stratum
Variance
A 473,898 1.0143 467,217 6 39 .009499111
A 450,368 0.9359 481,214 6 17 .005577218
A 476,169 1.0029 474,792 5 11 .002564907
A 433,308 0.9182 471,910 5 7 .009218721
D3 7,598,380 0.9520 7,981,492 20 1,044 .033257240
Random Totals: 9,432,123   9,876,625 42 1,118  
Catg J Exception Values: 472,547   643,646      
Catg D1 Exception Values: 4,071,030   3,064,972      
Catg G1 Exception Values: 1,926,810   1,735,948      
Total Test Values (4): 15,902,510   15,321,191      

Margin of Error

Margin of Error Percent: 5.0000029
Margin of Error Value: 766,060

Confidence Interval Values (5)

State Lower Limit: 14,555,131 (State Test Value minus Margin of Error Percent)
Local Test Value: 15,902,510 (Within Confidence Interval)
State Upper Limit: 16,087,251 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 17,314,840 (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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