Question

(a) Plot the histogram of hydrocarbons given in the table.

Find the .90, .75, .50, .25, and .10 quantiles. Does the distribution appear

Gaussian?

14.27 14.80 12.28 17.09 15.10 12.92 15.56 15.38

15.15 13.98 14.90 15.91 14.52 15.63 13.83 13.66

13.98 14.47 14.65 14.73 15.18 14.49 14.56 15.03

15.40 14.68 13.33 14.41 14.19 15.21 14.75 14.41

14.04 13.68 15.31 14.32 13.64 14.77 14.30 14.62

14.10 15.47 13.73 13.65 15.02 14.01 14.92 15.47

13.75 14.87 15.28 14.43 13.96 14.57 15.49 15.13

14.23 14.44 14.57

(b) The average percentage of hydrocarbons in microcrystalline wax (a syn-

thetic commercial wax) is 85%. Suppose that beeswax was diluted with 1%

microcrystalline wax. Could this be detected? What about a 3% or a 5%

dilution?

Answer 1