Consider the following data set. 21 28 19 26 13 25 23 25 22 24 16 13 13 a) Determine the quartiles for this data. b) Determine the interquartile range for this data. a) The first quartile is the second quartile is and the third quartile is (Type integers or decimals.) b) The interquartile range is (Type an integer or a decimal.)