A Running Coach Wanted to See Whether Runners Ran Faster

question 21

Multiple Choice

A running coach wanted to see whether runners ran faster after eating spaghetti the night before. A group of six runners was randomly chosen for this study. Each ran a 5 kilometer race after having a normal dinner the night before, and then a week later, reran the same race after having a spaghetti dinner the night before. The times for their races are shown in the table below. What test value should be used in a t test for these dependent samples?

• A) 5.07
• B) 1.07
• C) 2.07
• D) 2.62

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Definitions:

Red Flag Words

Phrases or terms that can indicate potential problems or areas of concern, often signaling caution.

Emotional Response

A reaction to something internally or externally that involves emotional feelings, such as happiness, anger, or sadness.

Information Overload

The state of being overwhelmed by the vast amount of available information, impeding understanding and decision-making.

Cognitive Dissonance

The psychological discomfort experienced when holding two or more conflicting beliefs, ideas, or values at the same time.