1.4 In an experiment designed to measure the effect of gender and frequency of travel on preference for long-haul holidays, a 2 (gender) × 3 (frequency of travel)

between-subjects design was adopted. Five participants were assigned to each cell for a total sample size of 30. Preference for long-haul holidays was measured on a nine-point scale (1 = No preference, 9 = Strong preference). Gender 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 in the table

Using software of your choice, perform the following analysis:
a Do males and females differ in their preference for long-haul travel?
b Do the light, medium and heavy travellers differ in their preference for long-haul travel?
c Conduct a 2 × 3 analysis of variance with preference for long-haul travel as the dependent variable and gender and travel frequency as the independent variables or factors. Interpret the results.

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Number Gender Travel group Preference 2 1 234 569 10 11 12 12 13 13 14 15 16 17 18 19 20 21 553m 00 NNNN mm mm mmm mm 7 00