A nutritionist investigates the impact of type of breakfast on mid-morning concentration. He puts together a sample
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A nutritionist investigates the impact of type of breakfast on mid-morning concentration. He puts together a sample of 50 adults. He feeds them a breakfast and 4 hours later measures their concentration on an interval level concentration test. On one day he feeds them bacon and eggs, on a second day he feeds them oatmeal, and on a third day he has them skip breakfast.
Select the appropriate statistical test from
(a) Single-sample z test;
(b) Single-sample t test;
(c) Independent-samples t test;
(d) Paired-samples t test;
(e) Between-subjects, one-way ANOVA; or
(f) none of the above.
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