2.1 For each of the following series (from the fma package), make a graph of the data. If transforming seems appropriate, do so and describe the effect.

(a) Monthly total of people on unemployed benefits in Australia (January 1956-July 1992).

(b) Monthly total of accidental deaths in the United States (January 1973-December 1978).

(c) Quarterly production of bricks (in millions of units) at Portland, Australia (March 1956-

September 1994).

• data ( package= 11 £ma 11 ) will give a list of the available data.
• To plot a transformed data set, use plot (BoxCox ( x, 0. 5))
where x is the name of the data set and 0.5 is the BoxCox parameter.