You hear on the news that the S&B 500 was down 1.3% today relative to the risk-free (the market's excess return was -1.3%). You are thinking about your portfolio and your investments in Hewlett Packard and Proctor and Gamble.

a. If Hewlett Packard's beta is 1.3, what is your best guess as to Hewlett Packard's excess return today?

b. If Proctor and Gamble's beta is 0.6, what is your best guess as to P&G's excess return today?

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