Ten people reported the number of hours they worked last week. 17, 42, 40, 35, 24, 20, 30, 32, 25, 38 what is the median, lower quartile, upper quartile, and interquartile range of this set of data? a. median: 31 lower quartile: 24 upper quartile: 38 interquartile range: 14 b. median: 22 lower quartile: 40 upper quartile: 32 interquartile range: 8 c. median: 31 lower quartile: 24 upper quartile: 38 interquartile range: 7 d. median: 32 lower quartile: 24 upper quartile: 38 interquartile range: 14