Suppose You Intend to Test the Claim That a Typical

question 71

Multiple Choice

Suppose you intend to test the claim that a typical high school student in Sydney spends more than $50 a week on mobile phone calls. Which hypotheses are used to test the claim?

• A)H0:   50.HA:  < 50.
• B)H0:  = 50.HA:   50.
• C)H0:   50.HA:  = 50.
• D)H0:  = 50.HA:  > 50.

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Definitions:

Placebo

An inactive substance or condition that has the appearance of an active treatment and that may cause improvement or change because of people’s belief in the placebo’s efficacy.

Nicotine Replacement

A method to help people stop smoking by delivering small amounts of nicotine to the body without the harmful effects of tobacco.

Smoking Cessation

The process of discontinuing tobacco smoking.

Regular Gum

A type of chewing gum without special additives such as nicotine or specific dental benefits, often used for oral entertainment or stress relief.