Please assist with question 6

You have been appointed as the intern at NAB Bank and you are required to conduct a study to assess how many hours managers spend in meetings in a week. There have been complaints that meetings take up too much of their time. You have selected 20 senior managers in your study. The following numbers of hours were spent in meetings in the past week: Number of hours of managers 61 0 1 11 5 (16-20) 21-25 26-30 1. Calculate the mean of the grouped data. (3) 2. Interpret the results calculated in Question 1. (1) 3. Calculate the modal ciass and the mode of the grouped data. (3) 4. Interpret the results calculated in Question 3. (1) 5. Calculate the median class and the median of the grouped data. (3) 6. Interpret the results calculated in Question 5 (1)