DealingWithStatisticalUncertaintyPractical

Dealing With Statistical Uncertainty – Practical Richard Mott Excercises

This exercise explores properties of the Normal and T distributions. You will learn how to use some of the basic R functions associated with these distributions. You will also write a small R program to perform a permutation test and a bootstrap confidence interval. Remember that R will provide help on any function func() by typing the command ?func. You can get help on all the functions associated with the Normal and T distributions by typing ?Normal and ?TDist a. Graph the density functions of the standard Normal distribution N(0,1) and the T distributions on 1, 2, 3, 4, 5, and 10 degrees of freedom (df), between the limits x=-3 and x=+3, on the same plot. At what df does the T distribution become similar to the Normal? Hint: To do this, first generate a dense sequence of x values with the command x