Public Health and Nutrition
William Soeltz, the food editor for The Boston Herald, conducted a study to examine the quality of wine (measured by age only) at local restaurants. Independent random samples of three types of wines (red, white, and rosé) were obtained from four exclusive restaurants (The Federalist, Top of the Hub, Capital Grille, and Azure). The age (in years) of each wine was recorded. Consider the following partial ANOVA summary table.
a. Complete the ANOVA table.
b. What was the total number of observations?
c. Conduct the hypothesis test for any effect due to interaction. Use a = 0.05. What does your conclusion imply about the other two hypothesis tests?
d. Conduct the hypothesis tests for factor effects. Use a = 0.05. State your conclusions.