37. The National Football League rates prospects position by position on a scale that ranges from 5 to 9. The ratings are interpreted as follows: 8–9 should start the first year; 7.0–7.9 should start; 6.0–6.9 will make the team as a backup; and 5.0–5.9 can make the club and contribute. Table 2.14 shows the position, weight, time (seconds to run 40 yards), and rating for 40 NFL prospects (USA Today, April 14, 2000).

a. Prepare a crosstabulation of the data on Position (rows) and Time (columns). Use classes of 4.00–4.49, 4.50–4.99, 5.00–5.49, and 5.50–5.99 for Time.

b. Comment on the relationship between Position and Time based upon the crosstabulation developed in part (a).

c. Develop a scatter diagram of the data on Time and Rating. Use the vertical axis for Rating.

d. Comment on the relationship, if any, between Time and Rating.