Use SPSS to complete an ANCOVA: Using the data file attached, answer the following questions in an analysis of whether level of stress and gender has an impact on caffeine consumption (measured as cups of coffee per day).

1. Is there a difference between the levels of caffeine consumption for the high-stress, low-stress and no-stress groups?

2. Is there a difference between males and females, regardless of stress group?

3. Are there any interactions?

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