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When is it appropriate to introduce complementary foods, and how should these foods be introduced into the diet?
Null Hypothesis
A statement that indicates no effect or no difference, and is the hypothesis that researchers seek to nullify or disprove through statistical analysis.
Alternative Hypothesis
An assumption that suggests there is a significant difference or effect, contrary to the null hypothesis.
Directional Hypothesis
A hypothesis that specifies the direction of the expected relationship between variables, indicating how one variable will affect another.
Alternative Hypothesis
The hypothesis that proposes a specific relationship between variables, contrary to the null hypothesis.
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