Cereal company
A food company is concerned about recent criticism of the sugar content of their children's cereals. The data show the sugar content (as a percentage of weight) of several national brands of children's and
Adults' cereals: 20, 30.2, 2.2, 7.5, 4.4, 22.2, 16.6, 14.5,
21.4, 3.3, 6.6, 7.8, 10.6, 16.2, 14.5, 4.1, 15.8, 4.1, 2.4,
3.5, 8.5, 10, 1, 4.4, 1.3, 8.1, 4.7, 18.4
a) Write the null and alternative hypotheses.
b) Check the conditions.
c) Find the 95% confidence interval for the difference in means.
d) Is there a significant difference in mean sugar content between these two types of cereals? Explain.