A Recent Study of Business Travelers Claims They Spend an Average

question 176

Multiple Choice

A recent study of business travelers claims they spend an average of $\$ 41.00$ per day on meals. As a test of this claim, a random sampling of 16 business travelers found they had spent an average of $\$ 45.00$ per day with a standard deviation of $\$ 3.65$ . What are the critical values for a two-tailed $t$ test of this claim with $\alpha = 0.05$ ?

• A) \(\pm 1.746\)
• B) \(\pm 2.131\)
• C) \(\pm 1.753\)
• D) \(\pm 2.120\)

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Definitions:

Perceived Body Defects

Flaws or imperfections in one's physical appearance that are observed or believed to be present by the individual, regardless of their actual existence.

Limbic System

An intricate assembly of nerve systems and networks within the brain, incorporating multiple regions close to the cortex's boundary that manage instinct and mood. It governs fundamental emotions (such as fear, joy, and anger) and primal urges (like appetite, sexual desire, dominance, and parental care).

Stress Hormones

Biochemical substances, such as cortisol and adrenaline, released by the body in response to stress, affecting physical and psychological well-being.

PTSD

Post-traumatic stress disorder is a psychological condition that occurs after someone has been through or seen a horrifying event, leading to symptoms like flashbacks, nightmares, and intense anxiety.