The folder olympics has seven judges’ ratings of seven figure skaters (on two criteria: “technical merit” and “artistic impression”) from the 1932 Winter Olympics. (a) Construct a 7 × 7 × 2 array of...

The folder olympics has seven judges’ ratings of seven figure skaters (on two criteria: “technical merit” and “artistic impression”) from the 1932 Winter Olympics.

(a) Construct a 7 × 7 × 2 array of the data (ordered by skater, judge, and judging criterion).

(b) Reformulate the data as a 98×4 array (similar to the top table in Figure 11.7), where the first two columns are the technical merit and artistic impression scores, the third column is a skater ID, and the fourth column is a judge ID.

(c) Add another column to this matrix representing an indicator variable that equals 1 if the skater and judge are from the same country, or 0 otherwise.