Question $9(10$ points$)$

During a typical lunch rush, Steak and Shake serves $1500$ customers during the $3$

hours period.

Each customer spends $($an average$)0\mathrm{.}2$ hrs in the shop.

On average, how many customers are in the shop simultaneously during the lunch

rush?

$300$

$100$ customers

$50$

$250$ customers

Question $10(10$ points$)$

In this week's supply chain in the news article, the average monthly "dwell time" or

days spent waiting for rail transport for imports into the ports of Los Angeles and

Long Beach is an example of:

Variability in outputs

Variability in inputs

Variability in demand

Variability in processes