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2009 Confidence Interval Detail
090/Gray
090-904/Pampa ISD

Category Summary

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

Stratum
Variance
A 91,339,990 0.8148 112,101,117 25 3,019 .066459679
A 83,815,870 0.9082 92,287,899 32 1,239 .041129330
A 92,701,290 0.9356 99,082,183 20 839 .012114138
A 112,929,589 0.9583 117,843,670 18 620 .006548138
D3 24,110,660 0.8298 29,055,989 18 1,656 .250767880
F1 28,058,930 0.9240 30,366,807 12 407 .097100412
F1 28,656,640 0.8993 31,865,495 7 110 .042122600
F1 31,277,090 1.0382 30,126,267 6 29 .005285181
F1 25,043,720 0.9018 27,770,814 3 5 .007609606
G1 24,831,430 1.1859 20,938,890 6 89 .085090567
G1 25,189,994 1.1273 22,345,422 6 32 .084578559
G1 24,734,401 1.0113 24,458,025 5 14 .003291693
G1 24,331,966 1.0086 24,124,495 3 4 .004995321
L1 47,229,003 0.9753 48,425,103 7 274 .003492365
L1 47,947,718 0.9840 48,727,356 7 43 .000812147
L1 39,195,716 1.0299 38,057,788 4 9 .001628989
Random Totals: 751,394,007   797,577,320 179 8,389  
Catg J Exception Values: 44,479,939   42,495,333      
Catg D1 Exception Values: 9,629,350   14,332,075      
Catg L1 Exception Values: 32,028,839   45,583,752      
Total Test Values (4): 837,532,135   899,988,480      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 44,999,424

Confidence Interval Values (5)

Local Test Value: 837,532,135 (Outside Confidence Interval)
State Lower Limit: 854,989,056 (State Test Value minus Margin of Error Percent)
State Upper Limit: 944,987,904 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 993,499,916 (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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