In: Statistics and Probability
The research center of a university collects data on employment and hourly earnings in private industry groups. Eighteen people working in the manufacturing industry are selected at random. Their average hourly earnings, in dollars, are as follows.
52.6 45.9 62.0 74.2 80.6 77.5 34.8 46.8 48.4 68.7 41.2 52.5 58.9 66.2 69.9 57.1 63.3 102.9
(a) Construct a frequency distribution and a relative frequency distribution for these hourly earnings. Use a first cutpoint of 34 and classes of equal width 9.
(b) Describe the distribution of hourly earnings.
(c) Obtain the five-number summary.
(d)Are there any outliers? Show appropriate calculations.
(e) Is a pie chart appropriate for this distribution of hourly earnings? Why or why not?