Dr. Thomas Stanley of Georgia State University has collected information on millionaires, including their ages, since 1973. The ages of the 18 millionaires sampled are arranged in increasing order in the following table. 31 32 35 36 42 45 49 52 56 59 62 62 68 69 71 72 75 78 a. Determine the mean and standard deviation for the given sample data. b. Determine the quartiles for the data. c. Obtain and interpret the interquartile range.

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Dr. Thomas Stanley of Georgia State University has collected information on millionaires,
including their ages, since 1973. The ages of the 18 millionaires sampled are arranged in increasing
order in the following table.

31 32 35 36 42 45
49 52 56 59 62 62
68 69 71 72 75 78
a. Determine the mean and standard deviation for the given sample data.
b. Determine the quartiles for the data.
c. Obtain and interpret the interquartile range.
d. Construct and interpret a boxplot.
e. Identify potential outliers, if any.

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