The accompanying data represent the miles per gallon of a random sample of cars with a three cylinder 1.0 liter engine.

a. compute the z-score corresponding to the individual who obtaines 37.6 miles per gallon. Interpret this result.

b. determine the quartiles.

c. compute and interpret the interquartile range IQR

d. determine the lower upper fences. Are there any outliers?

data:

32.5

34.2

34.7

35.4

36.3

36.4

37.5

37.6

37.7

38

38.1

38.3

38.7

39

39.4

39.7

40.2

40.6

41.4

41.8

42.3

42.6

43.3

49.1