By hand compute the sample correlation coefficient for the following data: 4 9. 10 y 20 18 10 8 4 Can you be 95% confident that a linear relation exists between the variables? If so, is the relation...

Kindly give
neat clean, correct and step by step
explanation

Extracted text: By hand compute the sample correlation coefficient for the following data: 4 9. 10 y 20 18 10 8 4 Can you be 95% confident that a linear relation exists between the variables? If so, is the relation positive or negative? Justify you answer.