28 Refer to Exercise 27. Convert the responses to percentages by calculating the percentage of each B class total falling into each A classification. Also, calculate the percentage of the total number of responses that constitute each of the A classification totals.

a. Create a bar graph with row A1 percentage on the vertical axis and B classification on the horizontal axis. Does the graph support the result of the test of hypothesis in Exercise 27? Explain.

b. Repeat part a for the row A2 percentages.

c. Repeat part a for the row A3 percentages.