Question

The Wall Street Journal published a study in May 2019 claiming that it was hard to...

The Wall Street Journal published a study in May 2019 claiming that it was hard to find CEOs that are younger than 50 years old in S&P 500 firms. The Table 4.1 shows the ages of the corporate CEOs for a random sample of these firms.

48

58

51

61

56

59

74

63

53

50

59

60

40

57

46

55

63

57

47

55

57

43

61

62

49

Table 4.1

Use this sample data to construct a 90% confidence interval for the mean age of CEO’s for these top firms. Use the Student's t-distribution.

Homework Answers

Answer #1

For the given data

mean = 55.36

s.d = 7.4436

ANSWER : 90 % C.I 52.813 < MU < 57.907

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