Surfing, Again College students and surfers Rex Robinson and Sandy Hudson collected data on the self-reported numbers of days surfed in a month for 30 longboard surfers and 30 shortboard surfers.
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a. Compare the typical number of days surfing for these two groups by placing the correct numbers in the blanks in the following sentence: The median for the longboards was __________ days, and the median for the shortboards was __________ days, showing that those with __________ boards typically surfed more days in this month.
b. Compare the interquartile ranges by placing the correct numbers in the blanks in the following sentence: The interquartile range for the longboards was __________ days, and the interquartile range for the shortboards was __________ days, showing more variation in the days surfed this month for the __________ boards.