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

question 133

Multiple Choice

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 $\alpha$
-Nine pairs of data yield $\mathrm { r } = 0.867$ and the regression equation $\hat { \mathrm { y } } = 19.4 + 0.93 \mathrm { x } .$ Also, $\overline { \mathrm { y } } = 64.7$ . What is the best predicted value of $y$ for $x = 44$ ?

• A) \(60.3\)
• B) \(79.6\)
• C) \(57.8\)
• D) \(64.7\)

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