STATISTICAL TECHNIQUES AND TOOLS
ANALYSIS OF VARIANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Determine whether the following scenario should use a one-way ANOVA test or two-way ANOVA test:A researcher want to determine whether there is an interaction between physical activity level and gender on blood cholesterol concentration in children.
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one-way ANOVA test
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two-way ANOVA test
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -A two-way ANOVA is used to estimate how the mean of a quantitative variable changes according to the levels of two categorical variables. Use a two-way ANOVA when you want to know how two independent variables, in combination, affect a dependent variable.
Detailed explanation-2: -One can use a two-way ANOVA test to check the effect of two factors on a dependent variable and if there is any interaction effect between the two. For example, a farmer can test the effect of fertilizer and watering frequency on the crop yield they get to harvest.
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