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In Order for a Companyʹs Employees to Work in a Foreign

Question 70

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.  Number of years, x344536273 Grades on test, y616875827390589372\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) y^=6.91x+46.26\hat {y }= 6.91 x + 46.26
B) y^=6.91x46.26\hat { y } = 6.91 \mathrm { x } - 46.26
C) y^=46.26x6.91\hat { y } = 46.26 \mathrm { x } - 6.91
D) y^=46.26x+6.91\hat { y } = 46.26 x + 6.91

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