In an experiment designed to measure the effect of sex and frequency of travel on preference for foreign travel a 2 (sex) x 3 (frequency of travel) between-subjects design was adopted. Five respondents were assigned to each cell for a total sample size of 30. Preference for foreign travel was measured on a 9-point scale (1 = no preference, 9 = strong preference). Sex was coded as male = 1 and female = 2. Frequency of travel was coded as light = 1, medium = 2, and heavy = 3. The data obtained are shown here.

Using software of your choice, perform the following analysis.
a. Do the males and the females differ in their preference for foreign travel?
b. Do the light, medium, and heavy travelers differ in their preference for foreign travel?
c. Conduct a 2 x 3 analysis of variance with preference for foreign travel as the dependent variable and sex and travel frequency as the independent variables or factors. Interpret the results.

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