Examlex
The owner of a small clothing store is concerned that only 28% of people who enter her store actually buy something. A
marketing salesman suggests that she invest in a new line of celebrity mannequins (think Seth Rogan modeling the latest
jeans…). He loans her several different "people" to scatter around the store for a two-week trial period. The owner carefully
counts how many shoppers enter the store and how many buy something so that at the end of the trial she can decide if she'll
purchase the mannequins. She'll buy the mannequins if there is evidence that the percentage of people that buy something
increases.
-Write the owner's null and alternative hypotheses.
Lung Cancer
A type of cancer that originates in the lungs and is often associated with smoking and exposure to harmful substances.
Tobacco Smoke
Smoke that comes from burning tobacco products, containing harmful substances that can affect health.
Leading Cause
The primary factor or condition that is most significantly associated with a particular outcome or disease.
Infants
Very young children, usually from birth up to one year old, who are in the early stages of development.
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