2. A manager of a food manufacturing company wants to estimate the percentage of fat in one of its salad dressings. A sample of 20 bottles was taken and the results are given below. 15.88 19.88 21.16 20.37 22.77 20.65 18.60 18.91 21.77 21.64 18.62 18.41 20.15 17.07 19.91 21.07 16.49 21.21 17.98 20.22 a. Use Excel to calculate the mean, median, and standard deviation for these data. b. Use SPSS to calculate the mean, median, and standard deviation for these data. c. Use SPSS to create a histogram of these data. d. Interpret these results and explain whether or not it is honest for the manufacturer to state that the fat content is 209%? Explain your answer. 3. A manager is worried that her employees are not engaged at work. She finds an employee engagement survey and administers it to her workers. The individual scores are provided in the dataset file