Vistaprint is a digital printing company that prints items like business cards, calendars, and posters. It owns a certain number of printing machines. To ensure the machines operate properly, the factory supervisor conducts a procedural check every month. One item on her checklist is the machine temperature and ensuring that the temperature for all machines is between 50°C and 70°C. The following is a random selection of machine temperatures (in °C) recorded by her:

58 68 55 51 65 72 58 54 63 59 52 50 61 61 56 70 64 68 59 52 59 63 71 62

a. Compute the average machines’ temperatures recoded by the factory supervisor.

b. Compute the median machines’ temperatures recoded by the factory supervisor.

c. Determine the mode for machines’ temperatures.

d. Discuss your findings in parts a to

c. Determine whether the machines’ temperatures are under control.