Final answer:
The contribution margin per hour of machine time for the Swoop and Rufus sweatshirts are $50 and $45, respectively, with the Swoop sweatshirt having a higher contribution margin per machine hour.
Step-by-step explanation:
To calculate the contribution margin per hour of machine time for each type of sweatshirt manufactured by Comfy Fit Company, we need to divide the unit contribution margins by the time it takes to make each sweatshirt.
For the Swoop sweatshirt: It takes 6 minutes of machine time, which is 1/10th of an hour (since 60 minutes = 1 hour). So, the contribution margin per hour is $5 divided by 1/10, which is $50 per hour.
For the Rufus sweatshirt: It takes 20 minutes of machine time, which is 1/3rd of an hour. So, the contribution margin per hour is $15 divided by 1/3, which is $45 per hour.
Therefore, the Swoop sweatshirt has a higher contribution margin per hour of machine time than the Rufus sweatshirt.