Split Stem: Golf The U.S. Open Golf Tournament was played at Congressional Country Club, Bethesda, Maryland, with prizes ranging from

$465,000 for fi rst place to $5000. Par for the course was 70.

The tournament consisted of four rounds played on different days. The scores for each round of the 32 players who placed in the money (more than $17,000) were given on a web site. For more information, visit the Brase/Brase statistics site at http://

www.cengagebrain.com and fi nd the link to golf. The scores for the fi rst round were as follows:

71 65 67 73 74 73 71 71 74 73 71 70 75 71 72 71 75 75 71 71 74 75 66 75 75 75 71 72 72 73 71 67 The scores for the fourth round for these players were as follows:

69 69 73 74 72 72 70 71 71 70 72 73 73 72 71 71 71 69 70 71 72 73 74 72 71 68 69 70 69 71 73 74

(a) Make a stem-and-leaf display for the fi rst-round scores. Use two lines per stem. (See Problem 5.)

(b) Make a stem-and-leaf display for the fourth-round scores. Use two lines per stem.

(c) Interpretation Compare the two distributions. How do the highest scores compare? How do the lowest scores compare?
Are cigarettes bad for people? Cigarette smoking involves tar, carbon monoxide, and nicotine. The fi rst two are defi nitely not good for a person’s health, and the last ingredient can cause addiction. Problems 7, 8, and 9 refer to Table 2-16, which was taken from the web site maintained by the Journal of Statistics Education. For more information, visit the Brase/Brase statistics site at http://
www.cengagebrain.com and fi nd the link to the Journal of Statistics Education.
Follow the links to the cigarette data.