We first saw data on breakfast cereals in Chapter 7. Supermarkets often place similar types of cereal
Question:
a) What are the null and alternative hypotheses?
b) What does the ANOVA table say about the null hypothesis? (Be sure to report this in terms of Sugars and Shelves.)
c) Can we conclude that cereals on shelf 2 have higher mean sugar content than cereals on shelf 3? Can we conclude that cereals on shelf 2 have higher mean sugar content than cereals on shelf 1? What can we conclude?
d) To check for significant differences between the shelf means, we can use a Bonferroni test, whose results are shown below. For each pair of shelves, the difference is shown along with its standard error and significance level. What does it say about the questions in part c?
Dependent Variable: SUGARS
Step by Step Answer:
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock