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.
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.