13.3 Suppose that you fit the model E(Y) Bo+Bx + B2x2 + B3x3 to 15 data points...

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13.3 Suppose that you fit the model E(Y) Bo+Bx + B2x2 + B3x3 to 15 data points and found F equal to 57.44.

a. Do the data provide sufficient evidence to indicate that the model contributes information for the pre- diction of y? Test using a 5% level of significance.

b. Use the value of F to calculate R. Interpret its value.

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