The Chattanooga Furniture store gets an average of $50$ customers per shift. Marilyn$$ Helms, the$$ manager, wants to calculate whether she should hire $1,2,3,$ or $4$ salespeople. She has determined that average waiting times will be $7$ minutes with one$$ salesperson, $4$ minutes with two$$ salespeople, $3$ minutes with three$$ salespeople, and $2$ minutes with four salespeople. She has estimated the cost per minute that customers wait at $$$$1.$ The cost per salesperson per shift$($including fringe$$ benefits$)$ is $$$$70.$

Part $2$

One$$ Server:

Part $3$

Total cost per shift$=$ enter your response here dollars.

Part $4$

Two$$ Servers:

Part $5$

Total cost per shift$=$ enter your response here dollars.

Part $6$

Three$$ Servers:

Part $7$

Total cost per shift$=$ enter your response here dollars.

Part $8$

Four$$ Servers:

Part $9$

Total cost per shift$=$ enter your response here dollars.

Part $10$

Based on the given$$ information, Marilyn has minimum total cost per shift with

$$

$3$

$2$

$4$

$1$

salespeople.