Nutrition. Use the data set Nutrition for Exercises 54–57.

Question 3.430

55. Use a statistical computing package (like Minitab) to explore the variable iron.

  1. Find the mean and standard deviation for the amount of iron in the food.
  2. Find the five-number summary the range, and the interquartile range.

3.5.55

Mean = 1.784 mg, standard deviation = 3.138 mg, min = 0.000 mg, Q1 = 0.300 mg, median = 0.800 mg, Q3 = 1.700 mg, max = 37.600 mg. Range = 37.600 mg – 0.000 mg = 37.600 mg. IQR = 1.700 mg – 0.300 mg = 1.400 mg