Shipping a 40-foot container by boat from Shanghai to Chicago via the port of Los Angeles takes, on average, 16 days. However, due to several possible mitigating circumstances, shipping times can vary. Suppose a transportation researcher randomly selects 20 different shipments over a yearly period and records the number of days that it takes for a container to travel from Shanghai to Chicago. The resulting data in number of days is given below.

a. Construct a stem-and-leaf plot for the data.
b. Construct a dot plot for the data.
c. Comment on any observations that you glean from these twoplots.

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25 12 23 16 27 19 32 20 32 13 17 18 26 19 18 28 18 31 30 24