Please show all work. Thank you!

For a sample of 8 employees, a personnel director has collected the following data on ownership of company stock, y, versus years with the firm, x.

X	6	12	14	6	9	13	15	9
Y	300	408	560	252	288	650	630	522

(a) Determine the least squares regression line and interpret its slope (b) For an employee who has been with the firm 10 years, what is the predicted number of shares owned?

(c) Is there a statistical significance between years of service and ownership of company stocks?