17. Which is the most appropriate statement? The differences between the groups are:

(a) Likely to have arisen by sampling error alone F (1,65) = 150.46, p 6 0.001

(b) Likely to have arisen by sampling error alone F (1,65) = 1.22, p 6 0.273

(c) Unlikely to have arisen by sampling error alone F (2,65) = 4.29, p 6 0.018

(d) Unlikely to have arisen by sampling error alone F (4,65) = 4.28, p 6 0.0004