4.43. (Class Exercise) Refer to Exercises 1.11 and 1.12

(page 8). Using the population defined by your class or using the studentsurvey, the instructor will select a variable,such as weekly time watching television.

(a) Construct a histogram or stcm-and-lcaf plot of the population distribution of the variable for the class.

(b) Using a random number table, each student should select nine students at random and compute the sample mean response for those students. (Each student should use different random numbers.) Plot a histogram of the sample means obtained by all the students. How do the spread and shape compare to the histogram in (a)? What docs this illustrate?