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.

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Definitions:

15 Percent

A figure that typically represents a portion, fraction, or rate equating to fifteen out of every hundred or 15% of a total.

Meta-Communication

Communication about communication, which includes the underlying messages, context, and cues beyond the literal meaning of words.

Hidden Assumptions

Hidden assumptions are unspoken or unconscious beliefs that underpin our thoughts, decisions, and actions, affecting our perceptions and understandings without us being aware.

Open Messages

Communication that is direct, clear, and easy to interpret.