Will give brainliest! fast! the following table shows the number of hours some teachers in two schools expect students to spend on homework each week: school a 9 14 15 17 17 7 15 6 6 school b 12 8 13 11 19 15 16 5 8 part a: create a five-number summary and calculate the interquartile range for the two sets of data. part b: are the box plots symmetric? justify your answer.