The following table summarizes the sample mean earnings, in thousands of dollars, of a random sample of year-round, full-time workers by gender and age.

(a) Construct an interaction plot for the data.

(b) Does the interaction plot indicate a significant interaction effect? Explain?

(c) What, if anything, can you conclude about the significance of the main effects?

45-54 2534 42.9 35-44 59.5 Male 67 35.2 41.9 Female 43.1