A common design requirement is that an environment must fit the range of people who fall between the
5th
percentile for
women and the 95th percentile for men. In designing an assembly work table, the sitting knee height must be considered,
which is the distance from the bottom of the feet to the top of the knee. Males have sitting knee heights that are normally
distributed with a mean of 21.3 in. and a standard deviation of 1.2 in. Females have sitting knee heights that are normally
distributed with a mean of 19.5 in. and a standard deviation of 1.1 in. Use this information to answer the following questions.