Public Health and Nutrition
A consumer group recently studied the amount of partially hydrogenated oils (trans fat) in various peanut butter brands. Four brands were selected in smooth and chunky varieties. The amount of trans fat was measured (in grams) per serving (two tablespoons) in each randomly selected jar, and the data are given in the table below.
a. Construct the two-way ANOVA summary table. Interpret the results. Use a = 0.05 for each hypothesis test.
b. If a consumer wants to avoid trans fat as much as possible, which combination of brand and style would you recommend? Why?
