Eating Out and Jobs College student Jacqueline Loya asked students who had full-time jobs and students who had part time jobs how many times they went out to eat in the last month.
Question Compare the two groups by following the steps below. Include appropriate graphics.
Step 1 Create graphs. Make dot plots (or histograms) using the same axis with one set of data above the other, as shown in the figure.
Step 2 Examine shape. What is the shape of the data for those with part-time jobs? What is the shape of the data for those with full-time jobs?
Step 3 Examine center. Which group tends to go out to eat more often, those with full-time or those with part-time jobs?
Step 4 Examine variation. Which group has a wider spread of data?
Step 5 Check for outliers. Were there any numbers separated from the other numbers as shown in the dotplots? (In other words, were there any gaps in the dot plots?)
Step 6 Summarize. Finally, in one or more sentences, compare the shape, center, and variation (and mention outliers if there were any).