In Order for a Companyʹs Employees to Work in a Foreign

question 10

Multiple Choice

In order for a companyʹs employees to work in a foreign office, they must take a test in the language of thecountry where they plan to work. The data below shows the relationship between the number of years thatemployees have studied a particular language and the grades they received on the proficiency exam. Find theequation of the regression line for the given data. Round the regression line values to the nearest hundredth. $\begin{array}{|l|c|c|c|c|c|c|c|c|c|}\text { Number of years, } \mathrm{x} & 3 & 4 & 4 & 5 & 3 & 6 & 2 & 7 & 3 \\\hline \text { Grades on test, } \mathrm{y} & 61 & 68 & 75 & 82 & 73 & 90 & 58 & 93 & 72\end{array}$

• A) \(\hat {y }= 6.91 x + 46.26\)
• B) \(\hat { y } = 6.91 \mathrm { x } - 46.26\)
• C) \(\hat { y } = 46.26 \mathrm { x } - 6.91\)
• D) \(\hat { y } = 46.26 x + 6.91\)

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