41. (Class Exercise) Refer to Problem 1.7. Using the population defined by your class or us- ing the WWW data set, the instructor will select a variable, such as weekly time watching television

a) Construct a histogram or stem and leaf plot of the population distribution of the vari- able for the class.

b) Using a random number table, each student should select five students at random and compute the sample mean response for those students. (Each student should use differ- ent random numbers.) Plot a histogram of the sample nieans obtained by all the students. How do the spread and shape compare to the histogram in ta)? What does this illustrate"