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2009 Confidence Interval Detail
161/McLennan
161-922/Robinson ISD

Category Summary

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

Stratum
Variance
A 68,589,287 0.9542 71,881,458 12 827 .016730636
A 92,458,767 0.9964 92,792,821 16 802 .017898940
A 85,271,469 0.9827 86,772,636 25 556 .007748494
A 100,232,503 0.9687 103,471,150 14 461 .005719948
D3 67,455,838 0.9669 69,765,062 21 1,713 .035879985
F1 8,150,042 0.9737 8,370,178 6 58 .003072662
F1 9,245,850 0.9848 9,388,556 6 16 .021062670
F1 10,402,898 0.9930 10,476,232 3 7 .013708433
L1 6,339,757 1.0049 6,308,844 7 115 .000940299
L1 8,093,363 1.0034 8,065,939 5 20 .000584856
L1 4,873,983 1.0215 4,771,398 3 4 .000654528
Random Totals: 461,113,757   472,064,274 118 4,579  
Catg D1 Exception Values: 5,942,237   5,709,001      
Catg F1 Exception Values: 6,510,772   6,714,741      
Catg L1 Exception Values: 4,257,982   4,274,382      
Total Test Values (4): 477,824,748   488,762,398      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,438,120

Confidence Interval Values (5)

State Lower Limit: 464,324,278 (State Test Value minus Margin of Error Percent)
Local Test Value: 477,824,748 (Within Confidence Interval)
State Upper Limit: 513,200,518 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 435,111,851 (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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