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2006 Confidence Interval Detail
140/Lamb
140-907/Springlake-Earth ISD

Category Summary

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

Stratum
Variance
A 3,122,996 0.9317 3,351,933 8 207 .035828072
A 3,123,415 0.9722 3,212,729 7 100 .050374181
A 3,108,630 0.8601 3,614,266 6 60 .035113685
A 3,111,647 0.9719 3,201,612 6 38 .114667372
D3 8,263,920 0.9956 8,300,442 15 1,076 .027648187
Random Totals: 20,730,608   21,680,982 42 1,481  
Catg J Exception Values: 2,409,140   2,740,275      
Catg D1 Exception Values: 17,290,477   21,202,868      
Total Test Values (4): 40,430,225   45,624,125      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,281,206

Confidence Interval Values (5)

Local Test Value: 40,430,225 (Outside Confidence Interval)
State Lower Limit: 43,342,919 (State Test Value minus Margin of Error Percent)
State Upper Limit: 47,905,331 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 47,823,814 (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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