This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.
Abstract Details
Activity Number:
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346
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Type:
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Contributed
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Date/Time:
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Tuesday, August 3, 2010 : 10:30 AM to 12:20 PM
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Sponsor:
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Business and Economic Statistics Section
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Abstract - #308970 |
Title:
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Equivalent Sample Sizes in Time Series Regressions
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Author(s):
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Jaechoul Lee*+ and Robert Lund
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Companies:
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Boise State University and Clemson University
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Address:
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1910 University Dr, Boise, ID, 83725,
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Keywords:
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Autocorrelation ;
Degrees of freedom ;
Ordinary least squares ;
Regression ;
Time series ;
Weighted least squares
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Abstract:
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This article studies confidence intervals for regression parameters in time series settings. An equivalent sample size method is proposed that retains the simple interval structure inherent with white noise model errors, but modifies the sample size to account for the serial autocorrelations present in the errors. This makes the interval perform akin to weighted least squares intervals. The accuracy of the approach is demonstrated in three common regression problems. A noteworthy by-product of the work identifies explicit variances of several classical regression statistics in time series settings.
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