Chapter 14, Problem 16P

Some people like to pour beer gently down the side of the glass to preserve hubbies. Others, splash it down the center to release the hubbies into a foamy head and free the aromas. Champagne, however, is best when the bubbles remain concentrated in the wine. A group of French scientists recently verified the difference between the two pouring methods by measuring the amount of bubbles in each glass of champagne poured two different ways and at three different temperatures (Liger-Belair et al., 2010). The following data present the pattern of results obtained in the study.

Champagne Temperature

   $\left(\text{°F}\right)$
   $40°$
   $46°$
   $52°$

Gentle Pour
   $n=10$

   $M=7$

   $SS=64$
   $n=10$

   $M=3$

   $SS=57$
   $n=10$

   $M=2$

   $SS=47$

Splashing Pour
   $n=10$

   $M=5$

   $SS=56$
   $n=10$

   $M=1$

   $SS=54$
   $n=10$

   $M=0$

   $SS=46$

a. Use a two-factor ANOVA with $\alpha =.05$ to evaluate the mean differences.

b. Briefly explain how temperature and pouring influence the bubbles in champagne according to this pattern of results.