1.A busy grocery store in San Antonio captures the time per item it takes to check out customers during their peak time. (The total time for the customer was divided by the number of items for that customer.If a customer took 8 minutes, or 480 seconds, to check out and purchased 24 items, the time would be 20).A sample of times is calculated for each cashier.They want to compare 2 cashiers. The following are the average time per item scanned in seconds for each cashier:

Cashier 1

Cashier 2

Time per Item Scanned

Time per Item Scanned

20

24

10

16

52

19

60

55

65

45

58

36

40

5

38

29

40

52

25

45

35

15

40

19

35

28

27

28

15

30

16

28

18

19

Compare the following (a through k) for these two cashiers and then help the store which of the two cashiers has better metrics (explain why):

Cashier 1

Cashier 2

a.Means

b.Q1 (or 25^th percentile)

c.Median

d.Q3 (or 75^th Percentile

e.Standard Deviations

f.Ranges

g.Interquartile Ranges

h.Stem and Leaf, one for each cashier

i.Line graphs that represent the number of items (you can combine both lines on one graph or you can submit 2 graphs.)

j.Explanation of which cashier has better metrics