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Hypothesis Testing - Sugar in Cereals

Sugar in Cereal. Different cereals are randomly selected, and the sugar content (grams of sugar per gram of cereal) is obtained for each cereal, with the results given below for Cheerios, Harmony, Smart Start, Cocoa Puffs, Lucky Charms, Corn Flakes, Fruit Loops, Wheaties, Cap'n Crunch, Frosted Flakes, Apple Jacks, Bran Flakes, Special K, Rice Krispies, Corn Pops, and Trix. Use a 0.05 significance level to test the claim of a cereal lobbyist that the mean for all cereals is less than 0.3g.

0.03 0.24 0.30 0.47 0.43 0.07 0.47 0.13
0.44 0.39 0.48 0.17 0.13 0.09 0.45 0.43

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