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The addition of sodium pyrophosphate to toothpaste is for the purpose of
Alternative Hypothesis
A statement that contradicts the null hypothesis, suggesting there is a significant difference or effect.
Middle Class
Refers to the social group between the upper and working classes, including professionals, business people, and others with a moderate to high income level.
Lower Class
A term often used in sociology to describe a social group that is at the bottom of a societal hierarchy based on wealth, education, or occupation.
Education Levels
Classifications that describe the highest degree of education completed by individuals or required for certain jobs.
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