D uring a typical Professional G olf Association (PGA)

to urnam ent, the com peting golfers play four rounds of golf, w here the hole locations are changed for each round.

Here are the scores for the top five finishers at the 2009 U.S. Open.

Golfer Round 1 2 3 4 Lucas Glover 69 64 70 73 Phil Mickelson 69 70 69 70 David Duval 67 70 70 71 Ricky Barnes 67 65 70 76 Ross Fisher 70 78 79 72 The following statistics were computed:

SST = 272.95 SSB = 93.2 SSE = 127.6

a. Construct an ANOVA table.

b. At th e 5 % significance level, can you conclude th a t average scores prod uced by th e fo u r d iffere n t rounds differ?

c. A t th e 5 % sign ificance level, can you co n c lu d e t h a t th e average scores produced by th e five d ifferen t players differ? P-69