Question 1: Data set containing information for 25 of the shadow stocks tracked by the American Association of Individual Investors. Shadow stocks are common stocks of smaller companies that are not closely followed by Wall Street analysts. The data set is in the file named Shadow02. 1) How many variables are in the data set? 2) Which of the variables are categorical and which are quantitative? 3) For the Exchange variable, show the frequency and the percent frequency for AMEX, NYSE, and OTC. Construct a bar graph similar to Figure 1.5 for the Exchange variable. 4) Show the frequency distribution for the Gross Profit Margin using the five intervals: 0–14.9, 15–29.9, 30–44.9, 45–59.9, and 60–74.9. Construct a histogram. 5) What is the average price/earnings ratio? Question 2: In alphabetical order, the six most common last names in the United States are Brown, Davis, Johnson, Jones, Smith, and Williams (The World Almanac, 2006). Assume that a sample of 50 individuals with one of these last names provided the following data. Brown Williams Williams Williams Brown Smith Jones Smith Johnson Smith Davis Smith Brown Williams Johnson Johnson Smith Smith Johnson Brown Williams Davis Johnson Williams Johnson Williams Johnson Jones Smith Brown Johnson Smith Smith Brown Jones Jones Jones Smith Smith Davis Davis Jones Williams Davis Smith Jones Johnson Brown Johnson Davis Summarize the data by constructing the following: 1) Relative and percent frequency distributions 2) A bar chart 3) A pie chart 4) Based on these data, what are the three most common last names?
