Use the Following to Answer the Questions Below

Essay

Use the following to answer the questions below:
Breakfast is often considered to be the most important meal of the day. Data on the number of calories per serving for randomly selected cereals from three different brands (General Mills, Kellogg's, and Kashi) are summarized in the provided plot and table.

-Computer output provides the following grouping information:

Means that do not share a letter are significantly different.
Based on this output, which brands have significantly different means? Briefly justify your answer.