42 For the WWW data on number of times a week reading a newspaper, referred to in Prob- lem 1.7, Figure 3.18 shows a computer printout of the stein and lead plot and the box plot.

a) From the box plot, identity the minimuin. lower quarule. median, upper quartile. and maxinuin

b) Identify these five numbers using the stem and leaf plot.

c) Do the dala appear to contain any outliers? If so, identify

d) Based on the box plot, indicate the approximate value of the mean. The standard de- viation is one of the following values-5. 3, 10, 20. Which do you think it is, and why"