A researcher at a large company collected data on the beginning
salary and current salary of 48 randomly selected employees. The
beginning salaries had a mean of $16,340 with a standard deviation
of $5,970. The current salaries had a mean of $32,070 with a
standard deviation of $15,300. The least-squares regression
equation for predicting current salary (y) from beginning salary
(x) is: predicted salary (y) = LaTeX: -2532.7+2.12x− 2532.7 + 2.12
x
A. Joseph Keller started working for the company...