Question

Over a nine-month period, OutdoorGearLab tested hardshell jackets designed for ice climbing, mountaineering, and backpacking. Based on the breathability, durability, versatility, features, mobility, and weight of each jacket, an overall rating ranging from 0 (lowest) to 100 (highest) was assigned to each jacket tested. The following data show the results for 20 top-of-the line jackets (OutdoorGearLab website, February 27, 2013).


a. Compute the mean, median, and mode.
b. Compute the first and third quartiles.
c. Compute and interpret the 90thpercentile.


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  • CreatedFebruary 16, 2015
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