The alternate hypothesis (H a) is that at least one group differs significantly from the overall mean of the dependent variable. The null hypothesis (H 0) of ANOVA is that there is no difference among group means.
You independent variable is type of fertilizer, and you treat crop fields with mixtures 1, 2 and 3 to find out if there is a difference in crop yield.Your independent variable is brand of soda, and you collect data on Coke, Pepsi, Sprite, and Fanta to find out if there is a difference in the price per 100ml.Your independent variable is social media use, and you assign groups to low, medium, and high levels of social media use to find out if there is a difference in hours of sleep per night.at least three different groups or categories).ĪNOVA tells you if the dependent variable changes according to the level of the independent variable. The independent variable should have at least three levels (i.e.
Use a one-way ANOVA when you have collected data about one categorical independent variable and one quantitative dependent variable.
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