PA $4\mathrm{.}4($Static$)$ Mr$.$ K$\text{'}$s is a very popular halr salon. It$...$

Mr$.$ K$\text{'}$s is a very popular hair salon. It offers high$-$quality hairstyling and physical relaxation services at a reasonable price, so it always

has unlimited demand. The service process includes five activities that are conducted in the sequence described next $($the time

required for each activity is shown in parentheses$)$:

Activity $1$ : Welcome a guest and offer homemade herb tea $(10$ minutes$).$

Activity $2$ : Wash and condition halr $(10$ minutes$).$

Activity $3$: Neck, shoulder, and back stress$-$release massage $(10$ minutes$).$

Activity $4$: Design the halistyle and do the halr $(25$ minutes$).$

Activity $5$: Check out the guest $(5$ minutes$).$

Three service employees $($ $$1,$ S$2,$ and S$3)$ offer the services in a worker$-$paced line. The assignment of tasks to the service employees

is the following: S$1$ does activity $1,$ S$2$ does actlvitles $2$ and $3,$ and S$3$ does activitles $4$ and $5.$

a$.$ What is the labor content?

Labor content

minutes per customer

b$.$ What is the average labor utilization?

Note: Round your answer to $2$ decimal places.

Average labor utilization

percent

c$.$ At a wage rate of $$20$ per hour, what is the cost of direct labor per customer?

Cost of direct labor

per customer

d$.$ Mr$.$ K considers hiring a new employee to help any one $($and only one$)$ of the servers without changing the tasks performed by each

server. What will be the new direct labor?

Note: Round your answer to $2$ decimal places.

New direct labor

per customer

e$.$ Mr$.$ K contemplates redesigning the assignment of tasks to servers. For this, Mr$.$ K is evaluating the reassignment of Activity $5$ from

S $3$ to S $1.$ What will be the new direct labor?