Using Minitab software please solve these questions - important

1)You are performing a study about the weight of preschoolers. A previous study found the weights to be normally distributed with a mean of 30 pounds and a standard deviation of 4 pounds. You randomly sample 30 preschool children and find their weights (in pounds) to be as follows. Use Minitab to draw a histogram with fit to display the data. Is it reasonable to assume that the weights are normally distributed? Why?

25 25 26 26.5 27 27 27.5 28 28 28.5

29 29 30 30 30.5 31 31 32 32.5 32.5

33 33 34 34.5 35 35 37 37 38 38

2) How much money does the average professional football fan spend on food at a single football game? That question was posed to 60 randomly selected football fans. The sampled results show that the sample mean was $70.00 and prior sampling indicated that the population standard deviation was $17.50.

a. Use this information to create 95 percent confidence interval for the population mean using Minitab