Here are the shopping times (in minutes) for each of eighteen shoppers at a local grocery store. Shopping times (in minutes) 37 37 26 22 34 44 30 27 25 25 20 20 17 20 29 20 29 15 19 121 21 38 33 18 23 Send data to calculator (a) Complete the grouped frequency distribution for the data. (Note that the class width is 6.) (in minutes) Shopping times Frequency 14.5 to 20.5 (b) Using the classes from part (a), draw the frequency polygon for the data. Note that you can add or remove classes from the figure. Label each class with its midpoint. Frequency 20.5 to 26.5 26.5 to 32.5 32.5 to 38.5 X G 6+ 5+ 4- 3- 2+ 1 Shopping times (in minutes)