labaug26 - Lab 1: Using R Andrew J. Womack Aug 26, 2011 1...

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Unformatted text preview: Lab 1: Using R Andrew J. Womack Aug 26, 2011 1 Estimating the Moments of a Mixture Distribution I have three measurement devices which you cannot distinguish. With equal probability, I will hand you a device and ask you to make a measurement. With device one, the measurements would follow a N (0 , 1) distribution. With device two, they would follow a T 4 distribution. With device 3 they would follow a Laplace distribution with scale 1. Devise a way to use random samples to produce a density plot of your possible measurements as well as estimating the standard deviation of the distribution. If you are feeling adventurous, you should also write a function that will generate random samples from the mixture distribution. 2 Function Writing and Sourcing Suppose that the random variable W is the sum of X and Y where X ∼ χ 2 3 and Y ∼ P (4). Write a function that will generate values of W . Make sure that the function has one input (number of desired samples) and outputs the appropriate number of samples.(number of desired samples) and outputs the appropriate number of samples....
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This note was uploaded on 01/29/2012 for the course STAT 6866 taught by Professor Womack during the Fall '11 term at University of Florida.

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labaug26 - Lab 1: Using R Andrew J. Womack Aug 26, 2011 1...

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