Scenario 12.1 - Charm City

Multiple Choice

Scenario 12.1 - Charm City
Avon Barksdale's operation uses large quantities of prepaid cell phones,on average 500 per week with a standard deviation of 45.The lead time for their own brand of prepaid cell phones is two weeks and they have a lot size of 125 phones.
-What is the standard deviation of demand during their lead time?

A) 45 phones
B) 64 phones
C) 90 phones
D) 109 phones