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2007 Confidence Interval Detail
221/Taylor
221-904/Merkel ISD

Category Summary

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

Stratum
Variance
A 15,806,845 1.0558 14,971,439 8 682 .024901952
A 15,801,874 1.0210 15,476,860 11 367 .005830233
A 15,775,632 0.9040 17,450,920 7 237 .012173570
A 15,770,472 0.9736 16,198,102 10 146 .013445556
D3 40,024,952 0.9422 42,480,314 16 2,710 .054764204
F1 5,844,940 1.0766 5,429,073 8 97 .022556924
F1 5,826,101 1.0410 5,596,639 6 33 .032276880
F1 5,871,709 0.9758 6,017,328 5 11 .003338905
G1 5,045,121 0.9202 5,482,635 6 36 .022420276
G1 5,226,190 1.0875 4,805,692 5 14 .046895804
L1 10,499,161 0.9840 10,669,879 6 78 .004835070
L1 11,944,312 0.9624 12,410,964 5 12 .005002708
L1 8,704,131 0.9068 9,598,733 2 3 .000303550
Random Totals: 162,141,440   166,588,578 95 4,426  
Catg J Exception Values: 11,797,019   12,322,471      
Catg D1 Exception Values: 14,196,790   13,536,677      
Catg F1 Exception Values: 5,066,234   5,230,143      
Catg L1 Exception Values: 13,317,827   12,529,350      
Total Test Values (4): 206,519,310   210,207,219      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,510,361

Confidence Interval Values (5)

State Lower Limit: 199,696,858 (State Test Value minus Margin of Error Percent)
Local Test Value: 206,519,310 (Within Confidence Interval)
State Upper Limit: 220,717,580 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 357,435,289 (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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