A Recent Study in the Restaurant Business Determined That the Mean

question 45

Multiple Choice

A recent study in the restaurant business determined that the mean tips for male waiters per hour of work are $6.78 with a standard deviation of $2.11. The mean tips per hour for female waiters are $7.86 with a standard deviation of $2.20. Based on this information, which of the following statements do we know to be true?

• A) The distribution of tips for both males and females is right-skewed.
• B) The variation in tips received by females is more variable than males.
• C) The median tips for females exceeds that of males.
• D) On a relative basis, males have more variation in tips per hour than do females.

---

Definitions:

Electric-shock Sensations

Sudden, sharp surges of pain or feeling of receiving an electric shock, which can be a symptom of neurological disorders or withdrawal from certain medications.

Positive Symptoms

In psychiatry, these symptoms include active manifestations such as hallucinations and delusions, often found in conditions like schizophrenia.

Butterflies

Light, fluttery sensations in the stomach, often as a response to nervousness or excitement.

Gentle Music

Soothing and calm music intended to relax the mind, reduce anxiety, and promote a peaceful state of being.