NBA Champs. The winner of the 2012–2013 National Basketball Association (NBA) championship was the Miami Heat. One possible starting lineup for that team is as follows.

Player Position Height (in.)

Chris Bosh (B) Center 83 Dwyane Wade (W) Guard 76 LeBron James (J) Forward 80 Mario Chalmers (C) Guard 74 Udonis Haslem (H) Forward 80

a. Determine the population mean height, μ, of the five players.

b. Consider samples of size 2 without replacement. Use your answer to Exercise 7.11

(b) on page 334 and Definition 3.11 on page 162 to find the mean, μx¯ , of the variable x¯.

c. Find μx¯ , using only the result of part (a).