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2011 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 32,944,850 0.8358 39,417,145 12 1,363 .082049586
A 37,540,200 0.9396 39,953,384 13 739 .071307186
A 42,399,200 1.0080 42,062,698 12 536 .016232629
A 42,993,840 0.8374 51,342,059 7 302 .025747237
D3 25,091,710 1.0048 24,971,845 18 1,816 .125255124
F1 11,820,470 1.0041 11,772,204 11 255 .057776492
F1 11,388,650 0.9679 11,766,350 9 83 .030172340
F1 13,013,740 0.9781 13,305,122 11 37 .043628432
F1 11,397,810 0.8201 13,898,073 9 10 .034779306
G1 37,450,430 1.0417 35,951,262 9 43 .012611529
G1 39,156,561 1.0004 39,140,905 7 14 .000513150
G1 38,030,440 1.0221 37,208,140 4 6 .004052530
G1 33,177,560 0.9952 33,337,580 2 3 .008923169
L1 7,835,450 1.0638 7,365,529 10 131 .014329417
L1 7,898,820 1.0008 7,892,506 13 30 .008391947
L1 7,870,640 1.0054 7,828,367 8 12 .002228095
L1 13,187,840 1.0016 13,166,773 3 6 .000619877
Random Totals: 413,198,211   430,379,942 158 5,386  
Catg D1 Exception Values: 54,759,310   46,146,751      
Total Test Values (4): 467,957,521   476,526,693      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 23,826,335

Confidence Interval Values (5)

State Lower Limit: 452,700,358 (State Test Value minus Margin of Error Percent)
Local Test Value: 467,957,521 (Within Confidence Interval)
State Upper Limit: 500,353,028 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 464,429,388 (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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