1.

(a) What do we mean by the term nonparametric statistics? What do we mean by the term parametric statistics? How do nonparametric methods differ from the methods we studied earlier?

(b) What are the advantages of nonparametric statistical methods? How can they be used in problems to which other methods we have learned would not apply?

(c) Are there disadvantages to nonparametric statistical methods? What do we mean when we say that nonparametric methods tend to waste information?

Why do we say that nonparametric methods are not as sensitive as parametric methods?

(d) List three random variables from ordinary experience to which you think nonparametric methods would definitely apply and the application of parametric methods would be questionable.