A Researcher Tests the Hypothesis That Large,daily Doses of Vitamin

question 14

Multiple Choice

A researcher tests the hypothesis that large,daily doses of vitamin C help protect against catching the common cold.What would be the best experimental and control group to test this hypothesis?

• A)Experimental group: takes a large dose of vitamin C daily;
• Control group: takes nothing
• B)Experimental group: people with a cold are administered vitamin C daily;
• Control group: people without a cold are not administered vitamin C
• C)Experimental group: takes a large dose of vitamin C daily;
• Control group: takes a large weekly dose of vitamin C
• D)Experimental group: takes a large,daily dose of vitamin C;

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Definitions:

Disposable Income

The spendable income of households after income tax deductions tailored for saving and spending.

Disposable Income

The financial resources meant for household spending and saving after settling income taxes.

Saving

The act of setting aside a portion of current income for future use, either by holding the funds in cash or investing them.

Disposable Income

Spendable and savable funds available to households after the deduction of income taxes.