Interpret the Coefficients of a Multiple Regression Equation
-A Gym $= 117$

question 54

Multiple Choice

Interpret the Coefficients of a Multiple Regression Equation
-A gym teacher uses three exercises to increase arm strength: push-ups, pull-ups, and rope climbing. He has 10 students in small class. The exercises consist of doing as many push-ups as possible in 2 minutes. After a rest the student does as many push-ups as possible in 2 minutes. After a rest the student climbs a rope and the time is recorded in seconds. The regression equation for this class is
Rope climb $= 117$ - 1.91 Push-up - 1.06 Pull-ups
A new student enters the class and is able to do 20 push-ups and 15 pull-ups, what is this student's expected time to climb the rope? Round your answer to the next whole second.

• A) 63 seconds
• B) 68 seconds
• C) 65 seconds
• D) 57 seconds

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