Find the Value of the Linear Correlation Coefficient R $( \mathrm { y } )$

question 37

Multiple Choice

Find the value of the linear correlation coefficient r.
-Based on the data from six students, the regression equation relating number of hours of preparation (x) and test score $( \mathrm { y } )$ is $y = 67.3 + 1.07 x$ . The same data yield $r = 0.224$ and $\bar{y} = 75.2$ . What is the best predicted test score for a student who spent 2 hours preparing for the test?

• A)69.4
• B)78.1
• C)75.2
• D)59.7

Understand the concept of Equivalent Annual Cost (EAC) and its utility in financial decision-making.

Comprehend why EAC is a preferred method under certain scenarios for comparing project costs.

Gain knowledge on the procedure for setting a bid price in a business context.

Understand the objectives behind setting a bid price by managers.

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