Suppose You Will Perform a Test to Determine Whether There $\alpha$

Suppose you will perform a test to determine whether there is sufficient evidence to support a claim of a linear
correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance
level $\alpha$
-Four pairs of data yield $\mathrm { r } = 0.942$ and the regression equation $\hat { \mathrm { y } } = 3 \mathrm { x }$ . Also, $\overline { \mathrm { y } } = 12.75$ . What is the best predicted value of $y$ for $x = 4.6$ ?

A) $12.75$
B) $13.8$
C) $2.826$
D) $0.942$