A well-known university is interested in how salary (in thousands of dollars) is predicted from years of service for faculty and administrative staff.  Below are the estimated regression equations. Faculty (n = 193): ŷ = 50 + 2.1xAdmin. (n = 179): ŷ = 47 + 2.3x a) How much would a faculty member be earning after 10 years of service?   b) In how many years will an administrator earn the same amount as in a)?

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A well-known university is interested in how salary (in thousands of dollars) is predicted from years of service for faculty and administrative staff.  Below are the estimated regression equations.

Faculty (n = 193): ŷ = 50 + 2.1x
Admin. (n = 179): ŷ = 47 + 2.3x


a) How much would a faculty member be earning after 10 years of service?

 

b) In how many years will an administrator earn the same amount as in a)?

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