In a study the steel rods supplied by two different companies. Measure of ?exibility are recorded for each company:
Company A: 9.3, 8.8, 6.8, 8.7, 8.5, 6.7, 8.0, 6.5, 9.2, 7.0
Company B: 11.0, 9.8, 9.9, 10.2, 10.1, 9.7, 11.0, 11.1, 10.2, 9.6
(a) Calculate the sample mean and median for the data for the two companies.
(b) Plot the data on the same line and give your impression regarding any apparent differences between the two companies.