A random sample of 25 British couples was asked how old they were when they got married. The data file Couples.MWX (for Minitab 19) or Couples.MTW (for Minitab 18) contains the data obtained.

What is the p-value of the Normality test necessary to validate the procedure that is routinely used to analyze such data?

a. 0.276

b. 0.099

c. 0.244

d. 0.013

e. 0.157

Husband    Wife

27    23

29    23

30    26

30    28

28    26

28    24

26    24

28    25

29    24

25    28

27    31

26    28

24    21

32    23

28    25

29    27

26    26

31    27

26    28

30    29

29    26

25    28

26    27

28    24

26    28