Give a point estimate (mean) for the average height of all people at the place where you work. Start by putting the 20 heights you are working with into the blue Datacolumn of the spreadsheet. What is your point estimate, and what does this mean?

Give a practical interpretation of the interval you found in part b, and explain carefully what the outputmeans.

Now, change your confidence level to 99% for the same data, and post a screenshot of this table, as well.

Compare the margins of error from the two screenshots. Would the margin of error be larger or smaller for the 99% CI? Explain your reasoning.

66

65

66

67

62

70

69

68

71

78

61

62.5

64

64.2

64.3

58

60

63

65

66.2