A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance traveled (miles). The fitted regression is Time = -7.126 + 0.0214 Distance. If Distance increases by 50 miles, the expected Time would increase by:
A)1.07 days
B)7.13 days
C)2.14 days
D)1.73 days

Question

Quizplus · Accepted Answer

The coefficient for Distance in the regression equation is 0.0214, which means for every additional mile, the time increases by 0.0214 days. For an increase of 50 miles, the expected increase in time is 50 * 0.0214 = 1.07 days.

A Local Trucking Company Fitted a Regression to Relate the Travel