As part of a class project, students chose beers and obtained the sodium content from the labels on the bottle or can. The file titled Sodium contains the amounts of sodium (mg) found in 12 fluid ounces of beer produced by the four major producers: Anheuser-

Busch Inc., Miller Brewing Co., Coors Brewing Co., and Pabst Brewing Co. The types of beer (ales, lager, and specialty beers) were also scrutinized in the analysis.

a. Determine if there is interaction between the producer and the type of beer. Use a significance level of 0.05.

b. Given your findings in part

a, determine if there is a difference in the average amounts of sodium in 12 ounces of beer among the producers of the beer.

Use a significance level of 0.05.

c. Repeat part b for the types of beer. Use a significance level of 0.05.