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2007 Confidence Interval Detail
139/Lamar
139-912/Prairiland ISD

Category Summary

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

Stratum
Variance
A 12,537,303 0.9784 12,814,087 15 485 .011227020
A 12,495,652 1.0059 12,422,360 15 281 .035845058
A 12,510,139 0.9252 13,521,551 17 195 .009866700
A 12,488,847 0.9704 12,869,793 15 121 .028655954
D3 55,648,875 0.9368 59,403,154 20 4,228 .016652666
Random Totals: 105,680,816   111,030,945 82 5,310  
Catg J Exception Values: 12,767,139   12,961,035      
Catg D1 Exception Values: 14,660,884   14,292,797      
Total Test Values (4): 133,108,839   138,284,777      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 6,914,239

Confidence Interval Values (5)

State Lower Limit: 131,370,538 (State Test Value minus Margin of Error Percent)
Local Test Value: 133,108,839 (Within Confidence Interval)
State Upper Limit: 145,199,016 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 119,098,003 (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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