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?
Answers: 3
Mathematics, 21.06.2019 14:30, Heyitsbrandi
Aparking lot is to be 400 feet wide and 370 feet deep. how many standard-sized cars fit in this lot considering a double-loaded (w4) two way traffic set up, an angle of 90° and a sw of 9’ 0’’? (do not consider handicapped parking spaces, and consider 15’ for turning aisles). show your work.
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Mathematics, 21.06.2019 15:50, tylerwayneparks
(08.01)consider the following pair of equations: x + y = −2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (−4, 2) (4, 2) (−2, 4) (2, 4)
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