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2009 Confidence Interval Detail
123/Jefferson
123-905/Nederland ISD

Category Summary

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

Stratum
Variance
A 228,795,530 0.9633 237,512,229 25 2,870 .001540512
A 249,447,850 0.9673 257,880,544 38 2,178 .002040029
A 264,933,620 0.9836 269,350,976 37 1,656 .001497124
A 275,634,970 0.9786 281,662,549 28 1,060 .001594725
F1 54,410,120 0.9611 56,612,340 13 330 .014806138
F1 52,874,950 0.9634 54,883,693 13 108 .005133479
F1 55,716,100 1.0257 54,320,074 10 40 .006820897
F1 51,254,450 0.9854 52,013,852 7 15 .005705125
L1 42,718,190 1.0118 42,219,994 13 356 .001708922
L1 39,288,960 0.9827 39,980,625 10 36 .003521045
L1 50,056,510 1.0007 50,021,495 7 18 .000020841
L1 38,870,670 0.9583 40,562,110 3 4 .009233555
Random Totals: 1,404,001,920   1,437,020,481 204 8,671  
Catg D1 Exception Values: 73,650   63,984      
Total Test Values (4): 1,404,075,570   1,437,084,465      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 71,854,223

Confidence Interval Values (5)

State Lower Limit: 1,365,230,242 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,404,075,570 (Within Confidence Interval)
State Upper Limit: 1,508,938,688 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,810,024,435 (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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