Eating habits affect energy levels

Reference no: EM131852817

You are interested in knowing whether morning eating habits affect energy levels later in the day. Nine subjects are tested under three conditions in a counterbalanced design: no breakfast, coffee only, or juice plus cereal. The following are hypothetical self ratings taken at 2 p.m. The scale ranges from 1 (very little energy) to 5 (very energetic). Use Friedman's test to evaluate the results and compute effect size.

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Reference no: EM131852817

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