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

question 73

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 $\alpha$
-The regression equation relating dexterity scores (x) and productivity scores (y) for the employees of a company is $\hat { y } = 5.50 + 1.91 x$ . Ten pairs of data were used to obtain the equation. The same data yield $r = 0.986$ and $\bar { y } = 56.3$ . What is the best predicted productivity score for a person whose dexterity score is 33 ?

• A) 56.30
• B) 183.41
• C) 58.20
• D) 68.53

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