Professor Dot Comm is teaching her students to perform work sampling observations. She instructed each member of the class of 20 students to make 10 random observations of her at some time during the school day, pool the results, and then present her with a description of how she spent her "average day at the office."
a. If Professor Comm works an eight-hour day at the office, what amount of time does she spend on each of the activities shown in the table above?
b. If Professor Comm wanted to know how much of her day was spent sending and receiving e-mail, would the work sampling study be an effective tool to answer the question? Why or why not?