4 6 1 2 3 4 Return Submit Time Remaining 14 4 points Critique the following chart: Salesperson Profit Margins Salesperson George Washington Grover Cleveland John Tyler Martin Van Buren Thomas Jefferson Ulysses Grant SUM(Pre Margin) 5 6 7 Required: a) Is the chart effective or ineffective? Defend your answer. b) What is an alternative chart type that could be used to present the data more effectively? B / WA EE 12pt Paragraph