A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.6 years, and standard deviation of 1.1 years. If 7 items are picked at random, 2% of the time their mean...

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.6 years, and standard deviation of 1.1 years.


If 7 items are picked at random, 2% of the time their mean life will be less than how many years?


Give your answer to one decimal place.