Mathematics, 10.01.2020 02:31 CelesteN64

Aresearcher at a large company has collected data on both the beginning salary and the current salary of 48 randomly selected employees. the least‑squares regression equation for predicting their current salary from their beginning salary is y^ =−2532.7 + 2.12x.(a) the current salaries had a mean of $32,070 with a standard deviation of $15,300. the beginning salaries had a mean of $16,340 with a standard deviation of $5,970. what is the correlation between current and beginning salary?
(b) mr. joseph keller started working for the company earning $22,000. what do you predict his current salary to be? (c) kathy jones started working for the company earning $19,000. she currently earns $40,000. what is the residual for ms. jones?

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