The shelf life of a battery produced by one major company is known to be Normally distributed, with a mean life of 10 years and a standard deviation...

The shelf life of a battery produced by one major company is known to be Normally distributed, with a mean life of 10 years and a standard deviation of 0.1 years.

What value of shelf life do 16% of the battery shelf lives fall below? Round your answer to one decimal place.