Table 14.3
Columbia Appliance sells and delivers appliances in the Columbia,South Carolina area.The Operations and Supply Chain Manager wants to be able to predict the delivery crew's hours for easier scheduling.The delivery crew,consisting of a truck and two workers,must load the truck each day and then drive the truck to various locations to deliver appliances.Variables each day include miles driven and the number of deliveries made.The manager has collected data for the past five weeks,and has recorded the following average daily crew hours worked,miles driven and deliveries made:
The manager uses the multiple regression model in POM for Windows and obtains the following results:
-Use the information provided in Table 14.3.If 10 extra miles of driving is added to the crew's daily work,how much time is added to their work schedule for that day? (Assume all other variables are held constant. )

Question

Table 14.3
Columbia Appliance sells and delivers appliances in the Columbia,South Carolina area.The Operations and Supply Chain Manager wants to be able to predict the delivery crew's hours for easier scheduling.The delivery crew,consisting of a truck and two workers,must load the truck each day and then drive the truck to various locations to deliver appliances.Variables each day include miles driven and the number of deliveries made.The manager has collected data for the past five weeks,and has recorded the following average daily crew hours worked,miles driven and deliveries made:
  The manager uses the multiple regression model in POM for Windows and obtains the following results: 
-Use the information provided in Table 14.3.If 10 extra miles of driving is added to the crew's daily work,how much time is added to their work schedule for that day? (Assume all other variables are held constant. )

Quizplus · Accepted Answer

The correct answer is 24 minutes. If 10 extra miles are added, and assuming the crew's driving speed is constant, the time added can be calculated based on their average speed. If the average speed is 25 mph, then 10 miles would take 24 minutes (10 miles / 25 mph * 60 minutes/hour = 24 minutes).

Table 14.3 Columbia Appliance Sells and Delivers Appliances in the Columbia,South Carolina