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2009 Confidence Interval Detail
058/Dawson
058-906/Lamesa ISD

Category Summary

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

Stratum
Variance
A 30,080,830 0.9522 31,590,874 9 1,407 .053693232
A 32,110,980 1.0009 32,082,106 12 722 .043737274
A 35,284,630 0.9968 35,397,903 17 509 .031088956
A 42,381,110 0.8607 49,240,281 10 337 .019376507
D3 25,878,630 1.0031 25,798,654 10 1,784 .245349169
F1 9,937,100 1.0272 9,673,968 7 274 .085255037
F1 9,975,760 1.0172 9,807,078 6 89 .097315887
F1 10,105,250 0.9278 10,891,625 6 32 .022397899
F1 9,069,700 0.8700 10,424,943 4 10 .033095983
G1 31,276,819 0.9564 32,702,655 6 39 .018091561
G1 33,896,252 0.9958 34,039,217 6 13 .002444412
G1 35,540,697 0.9985 35,594,088 5 6 .005192960
L1 8,352,660 1.0345 8,074,103 8 133 .007443479
L1 7,056,960 0.9800 7,200,980 6 24 .002925792
L1 6,207,370 0.9981 6,219,186 4 10 .000008846
L1 11,717,430 0.9910 11,823,845 2 5 .000316893
Random Totals: 338,872,178   350,561,506 118 5,394  
Catg D1 Exception Values: 45,125,030   58,541,783      
Catg G1 Exception Values: 24,158,176   24,899,445      
Total Test Values (4): 408,155,384   434,002,734      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 21,700,137

Confidence Interval Values (5)

Local Test Value: 408,155,384 (Outside Confidence Interval)
State Lower Limit: 412,302,597 (State Test Value minus Margin of Error Percent)
State Upper Limit: 455,702,871 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 427,957,373 (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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