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2009 Confidence Interval Detail
147/Limestone
147-902/Groesbeck ISD

Category Summary

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

Stratum
Variance
A 60,509,433 1.0198 59,334,608 10 1,235 .042163412
A 64,319,654 0.9122 70,510,474 10 648 .029771455
A 64,916,155 0.9460 68,621,728 7 388 .002411711
A 64,629,360 1.0050 64,307,821 8 220 .002588618
D3 133,989,753 0.9610 139,427,422 20 5,965 .014523772
G1 202,014,905 0.9953 202,968,859 17 374 .046190132
G1 202,321,834 0.9665 209,334,541 15 166 .033845952
G1 203,191,670 1.0162 199,952,440 17 94 .013872289
G1 199,985,867 0.9942 201,152,552 14 51 .001681455
Random Totals: 1,195,878,631   1,215,610,445 118 9,141  
Catg J Exception Values: 39,463,897   40,083,831      
Catg D1 Exception Values: 12,395,835   13,913,160      
Total Test Values (4): 1,247,738,363   1,269,607,436      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 63,480,372

Confidence Interval Values (5)

State Lower Limit: 1,206,127,064 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,247,738,363 (Within Confidence Interval)
State Upper Limit: 1,333,087,808 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,334,567,264 (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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