Jessica Salas, President of Salas Products, Is Reviewing the Warranty

Multiple Choice

Jessica Salas, President of Salas Products, is reviewing the warranty policy for her company's new model of automobile batteries.Life tests performed on a sample of 100 batteries indicated: (1) an average life of 75 months, (2) a standard deviation of 5 months, and (3) a bell shaped battery life distribution.Approximately 99.7% of the batteries will last between ________________.

A) 70 and 80 months
B) 60 and 90 months
C) 65 and 85 months
D) 55 and 95 months
E) 50 and 100 months