Distribution St. Dev. Mean Normal 1.1 in. 23.5 in. Males Normal 1.0 in. 22.7 in. Females
Seat Designs. In Exercises 13–20, use 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. (Hint: Draw a graph in each case.)
Sitting Back-to-Knee Length (inches)
Significance Instead of using 0.05 for identifying significant values, use the criteria that a value x is significantly high. if P(x or greater) ≤ 0.025 and a value is significantly low if p(x or less) ≤ 0.025. Find the female back-to-knee length, separating significant values from those that are not significant. Using these criteria, is a female back-to-knee length of 20 in. significantly low?
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