Peanut butter problem: Calculation of Inter Quartile Range IQR.
The cost of one serving of peanut butter (in cents) for a random sample of 19 jars of peanut butter was found to be:
22

27

32

26

26

19

16

26

14

21

20

21

20

17

12

32

17

9

16


a) Give the fivenumber summary ( low, q1, median, Q3, high).
b) Compute the IQR