January 2009
Beginner
264 pages
8h 12m
English
Content preview from Computational Statistics
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R COMPLEMENTS 41
Exercise 1.25
Generate a P P plot of the t(ν) distribution against the standard
normal distribution in the range 0.01 ≤ p ≤ 0.99 for ν = 1, 2, 3, . . ..
Generate a QQ plot of the t(ν) distribution against the standard
normal distribution in the range −3 ≤ x ≤ 3 for ν = 1, 2, 3, . . ..
How large must ν be so that the t distribution is barely different
from the normal distribution in these plots?
How large must ν be so that the t distribution is barely differ-
ent from the normal distribution if you compare the graphs of the
distribution functions?
Of course aspects other than power may be considered when choosing a graphical
method. So in ...
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