5. e) Based on your investigation of the data set create two well-formatted tables that illustrate some important features of the data. Your tables should have informative labels and a readable number of decimal places. Each table should include an informative caption.

   [8 marks]

6. f) With reference to the tables you have made, is there evidence that Karl is a worse employee than Jo and Lee? What do you think the manager should focus on to try and improve the overall quality of soup produced?

7. g) What are the limitations of this sort of data for trying to establish cause and effect?

8. h) How should the 480 cans of soup used for this investigation have been selected?

Scenario. Soupy is a small company that makes cans of soup. They make three types of soup, Vegetable, Mushroom, and Noodle. The company has three employees that operate the machines that fill the cans. Recently concerns have been raised about an increasing number of cans of soup that do not pass quality inspection. Data has been collected on the following attributes of the cans of soup (see the file Soupy.xls). ID An identification number for the chocolate bar SOUP EMPLOYEE The type of soup (Vegetable, Mushroom, Noodle) The employee that operated the machine (Jo, Karl or Lee) Volume of soup in the can (in millilitres). If the soup was deemed to pass quality inspection or not WEIGHT QUALITY The manager of Soupy is concerned that Karl's cans of soup have a higher defect rate than either of Jo's or Lee's. However, it is possible that other variables may impact this finding. Your role is to investigate the data. Scenario. Soupy is a small company that makes cans of soup. They make three types of soup, Vegetable, Mushroom, and Noodle. The company has three employees that operate the machines that fill the cans. Recently concerns have been raised about an increasing number of cans of soup that do not pass quality inspection. Data has been collected on the following attributes of the cans of soup (see the file Soupy.xls). ID An identification number for the chocolate bar SOUP EMPLOYEE The type of soup (Vegetable, Mushroom, Noodle) The employee that operated the machine (Jo, Karl or Lee) Volume of soup in the can (in millilitres). If the soup was deemed to pass quality inspection or not WEIGHT QUALITY The manager of Soupy is concerned that Karl's cans of soup have a higher defect rate than either of Jo's or Lee's. However, it is possible that other variables may impact this finding. Your role is to investigate the data