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Hana is measuring the effects of 3 does of estrogen on mood changes in women.She has 3 groups of subjects (control,3mg and 5mg group).After subjects are randomly divided into groups and administered estrogen or placebo their moods were evaluated with a mood questionnaire.What statistical test should he use?
Regulatory Legislation
Laws enacted to control, direct, or manage activities, businesses, or industries, often for the purposes of protection, safety, or fairness.
Theodore Roosevelt
The 26th President of the United States, known for his progressive policies, conservation efforts, and the establishment of the national parks system.
American Education
The system of education in the United States, characterized by a decentralized approach, various educational institutions, and policies that vary widely across states and localities.
Progressive Era
A period of widespread social activism and political reform in the United States, from the 1890s to the 1920s, that aimed to eliminate problems caused by industrialization, urbanization, immigration, and political corruption.
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