Make a back to back stemplot

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Are female personal trainers, on average, younger? A fitness center employs 20 personal trainers. Here are the ages in years of the female and male personal trainers working at this center:

Male

25

26

23

32

35

29

30

28

31

32

29

Female

21

23

22

23

20

29

24

19

22

 

 

(a) Make a back-to-back stemplot. Do you think the difference in mean ages will be significant?

(b) A two-sample t test gives P

(c) What do you conclude about using the t test? What do you conclude about the mean ages of the trainers?

Reference no: EM131431897

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