Question: For males, find P90, which is the length separating the bottom 90% from the top 10%. Inuse the data in the table below for sitting

For males, find P90, which is the length separating the bottom 90% from the top 10%.

Inuse the data in the table below for sitting adult males and females (based on anthropometric survey data from Gordon, Churchill, et al.). These data are used often in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats.

Males Females Sitting Back-to-Knee Mean 23.5 in. 22.7 in. Length (inches) St.

Males Females Sitting Back-to-Knee Mean 23.5 in. 22.7 in. Length (inches) St. Dev. 1.1 in. 1.0 in. Distribution Normal Normal

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