A Waitress Is Interested in Whether She Receives Larger Tips

question 5

Multiple Choice

A waitress is interested in whether she receives larger tips in general from her male customers than her female customers. She records the gender of the customer who paid the bill and the amount of the tip over a two-day period. Statistically speaking, the "signal" in this research scenario would be

• A) the difference between the average tip amounts received on the first and second days.
• B) the fluctuation in tip amounts received from male customers during the two-day period.
• C) the difference between the average tip amounts received from the male and female customers.
• D) the fluctuation in tip amounts received from the male and female customers.

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Definitions:

ANOVA Table

A table used to summarize the results and findings of an Analysis of Variance, displaying sources of variance, degrees of freedom, and significance levels.

Mean Square

A statistical measure used in variance analysis, representing the average of squared differences from the mean.

F Statistic

A value used in statistical analysis to compare the variances of two samples and determine if they come from populations with equal variances.

One-way ANOVA

A statistical method for identifying if there are notable differences in the average values of three or more separate groups.