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2007 Confidence Interval Detail
054/Crosby
054-901/Crosbyton CISD

Category Summary

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

Stratum
Variance
A 7,793,578 1.0506 7,418,216 14 376 .102604112
A 7,812,948 0.8441 9,255,951 15 216 .067869035
A 7,805,973 0.7829 9,970,588 15 131 .033053339
A 7,739,977 0.8219 9,417,176 16 71 .047118936
D3 6,494,800 0.8008 8,110,390 14 1,716 .134438096
F1 944,698 1.0718 881,413 6 50 .043386657
F1 935,581 0.8965 1,043,593 5 18 .023739229
F1 912,934 0.9527 958,260 4 9 .056459880
Random Totals: 40,440,489   47,055,587 89 2,587  
Catg D1 Exception Values: 15,179,560   20,206,507      
Catg F1 Exception Values: 682,550   695,860      
Total Test Values (4): 56,302,599   67,957,954      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 3,397,898

Confidence Interval Values (5)

Local Test Value: 56,302,599 (Outside Confidence Interval)
State Lower Limit: 64,560,056 (State Test Value minus Margin of Error Percent)
State Upper Limit: 71,355,852 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 71,867,209 (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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